Update translations.

45 files changed, 1058 insertions, 90 deletions

diff --git a/i18n/ar.i18n.json b/i18n/ar.i18n.json
index 47c120e8..5f423ddf 100644
--- a/i18n/ar.i18n.json
+++ b/i18n/ar.i18n.json
@@ -2,6 +2,7 @@
     "accept": "اقبلboard",
     "act-activity-notify": "[Wekan] اشعار عن نشاط",
     "act-addAttachment": "ربط __attachment__ الى __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "علق على __comment__ : __card__",
@@ -41,6 +42,7 @@
     "activity-removed": "حذف %s إلى %s",
     "activity-sent": "إرسال %s إلى %s",
     "activity-unjoined": "غادر %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "أضاف قائمة تحقق إلى %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "أضف",
@@ -48,6 +50,7 @@
     "add-board": "إضافة لوحة",
     "add-card": "إضافة بطاقة",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "إضافة قائمة تدقيق",
     "add-checklist-item": "إضافة عنصر إلى قائمة التحقق",
     "add-cover": "إضافة غلاف",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "تغيير كلمة المرور",
     "changePermissionsPopup-title": "تعديل الصلاحيات",
     "changeSettingsPopup-title": "تغيير الاعدادات",
+    "subtasks": "Subtasks",
     "checklists": "قوائم التّدقيق",
     "click-to-star": "اضغط لإضافة اللوحة للمفضلة.",
     "click-to-unstar": "اضغط لحذف اللوحة من المفضلة.",
@@ -163,7 +167,8 @@
     "comment-only": "التعليق فقط",
     "comment-only-desc": "يمكن التعليق على بطاقات فقط.",
     "computer": "حاسوب",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "نسخ رابط البطاقة إلى الحافظة",
     "copyCardPopup-title": "نسخ البطاقة",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/bg.i18n.json b/i18n/bg.i18n.json
index c2874364..69fe5188 100644
--- a/i18n/bg.i18n.json
+++ b/i18n/bg.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accept",
     "act-activity-notify": "[Wekan] Известия за дейности",
     "act-addAttachment": "прикачи __attachment__ към __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "добави списък със задачи __checklist__ към __card__",
     "act-addChecklistItem": "добави __checklistItem__ към списък със задачи __checklist__ в __card__",
     "act-addComment": "Коментира в __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "премахна %s от %s",
     "activity-sent": "изпрати %s до %s",
     "activity-unjoined": "вече не е част от %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "добави списък със задачи към %s",
     "activity-checklist-item-added": "добави точка към '%s' в/във %s",
     "add": "Добави",
@@ -48,6 +50,7 @@
     "add-board": "Добави Табло",
     "add-card": "Добави карта",
     "add-swimlane": "Добави коридор",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Добави списък със задачи",
     "add-checklist-item": "Добави точка към списъка със задачи",
     "add-cover": "Добави корица",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Промени паролата",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Промяна на настройките",
+    "subtasks": "Subtasks",
     "checklists": "Списъци със задачи",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Натиснете, за да премахнете това табло от любими.",
@@ -163,7 +167,8 @@
     "comment-only": "Само коментар",
     "comment-only-desc": "Може да коментира само в карти.",
     "computer": "Компютър",
-    "confirm-checklist-delete-dialog": "Сигурни ли сте, че искате да изтриете този чеклист?",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Копирай връзката на картата в клипборда",
     "copyCardPopup-title": "Копирай картата",
     "copyChecklistToManyCardsPopup-title": "Копирай чеклисти в други карти",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/br.i18n.json b/i18n/br.i18n.json
index fa2c25e2..a1043e89 100644
--- a/i18n/br.i18n.json
+++ b/i18n/br.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Asantiñ",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Ouzhpenn",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Ouzphenn ur golo",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Kemmañ ger-tremen",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/ca.i18n.json b/i18n/ca.i18n.json
index 5badc85e..6cceb936 100644
--- a/i18n/ca.i18n.json
+++ b/i18n/ca.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accepta",
     "act-activity-notify": "[Wekan] Notificació d'activitat",
     "act-addAttachment": "adjuntat __attachment__ a __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "afegida la checklist _checklist__ a __card__",
     "act-addChecklistItem": "afegit __checklistItem__ a la checklist __checklist__ on __card__",
     "act-addComment": "comentat a __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "ha eliminat %s de %s",
     "activity-sent": "ha enviat %s %s",
     "activity-unjoined": "desassignat %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "Checklist afegida a %s",
     "activity-checklist-item-added": "afegida entrada de checklist de '%s' a %s",
     "add": "Afegeix",
@@ -48,6 +50,7 @@
     "add-board": "Afegeix Tauler",
     "add-card": "Afegeix fitxa",
     "add-swimlane": "Afegix Carril de Natació",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Afegeix checklist",
     "add-checklist-item": "Afegeix un ítem",
     "add-cover": "Afegeix coberta",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Canvia la contrasenya",
     "changePermissionsPopup-title": "Canvia permisos",
     "changeSettingsPopup-title": "Canvia configuració",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Fes clic per destacar aquest tauler.",
     "click-to-unstar": "Fes clic per deixar de destacar aquest tauler.",
@@ -163,7 +167,8 @@
     "comment-only": "Només comentaris",
     "comment-only-desc": "Només pots fer comentaris a les fitxes",
     "computer": "Ordinador",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copia l'enllaç de la ftixa al porta-retalls",
     "copyCardPopup-title": "Copia la fitxa",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/cs.i18n.json b/i18n/cs.i18n.json
index f067e9d3..61b5402c 100644
--- a/i18n/cs.i18n.json
+++ b/i18n/cs.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Přijmout",
     "act-activity-notify": "[Wekan] Notifikace aktivit",
     "act-addAttachment": "přiložen __attachment__ do __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "přidán checklist __checklist__ do __card__",
     "act-addChecklistItem": "přidán __checklistItem__ do checklistu __checklist__ v __card__",
     "act-addComment": "komentář k __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "odstraněn %s z %s",
     "activity-sent": "%s posláno na %s",
     "activity-unjoined": "odpojen %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "přidán checklist do %s",
     "activity-checklist-item-added": "přidána položka checklist do '%s' v %s",
     "add": "Přidat",
@@ -48,6 +50,7 @@
     "add-board": "Přidat tablo",
     "add-card": "Přidat kartu",
     "add-swimlane": "Přidat Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Přidat zaškrtávací seznam",
     "add-checklist-item": "Přidat položku do zaškrtávacího seznamu",
     "add-cover": "Přidat obal",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Změnit heslo",
     "changePermissionsPopup-title": "Změnit oprávnění",
     "changeSettingsPopup-title": "Změnit nastavení",
+    "subtasks": "Subtasks",
     "checklists": "Checklisty",
     "click-to-star": "Kliknutím přidat hvězdičku tomuto tablu.",
     "click-to-unstar": "Kliknutím odebrat hvězdičku tomuto tablu.",
@@ -163,7 +167,8 @@
     "comment-only": "Pouze komentáře",
     "comment-only-desc": "Může přidávat komentáře pouze do karet.",
     "computer": "Počítač",
-    "confirm-checklist-delete-dialog": "Opravdu chcete smazat tento checklist?",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Kopírovat adresu karty do mezipaměti",
     "copyCardPopup-title": "Kopírovat kartu",
     "copyChecklistToManyCardsPopup-title": "Kopírovat checklist do více karet",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Smazat tablo?",
-    "delete-board": "Smazat tablo"
+    "delete-board": "Smazat tablo",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/de.i18n.json b/i18n/de.i18n.json
index 2ae21b93..ac7f544b 100644
--- a/i18n/de.i18n.json
+++ b/i18n/de.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Akzeptieren",
     "act-activity-notify": "[Wekan] Aktivitätsbenachrichtigung",
     "act-addAttachment": "hat __attachment__ an __card__ angehängt",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "hat die Checkliste __checklist__ zu __card__ hinzugefügt",
     "act-addChecklistItem": "hat __checklistItem__ zur Checkliste __checklist__ in __card__ hinzugefügt",
     "act-addComment": "hat __card__ kommentiert: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "hat %s von %s entfernt",
     "activity-sent": "hat %s an %s gesendet",
     "activity-unjoined": "hat %s verlassen",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "hat eine Checkliste zu %s hinzugefügt",
     "activity-checklist-item-added": "hat eine Checklistenposition zu '%s' in %s hinzugefügt",
     "add": "Hinzufügen",
@@ -48,6 +50,7 @@
     "add-board": "neues Board",
     "add-card": "Karte hinzufügen",
     "add-swimlane": "Swimlane hinzufügen",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Checkliste hinzufügen",
     "add-checklist-item": "Position zu einer Checkliste hinzufügen",
     "add-cover": "Cover hinzufügen",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Passwort ändern",
     "changePermissionsPopup-title": "Berechtigungen ändern",
     "changeSettingsPopup-title": "Einstellungen ändern",
+    "subtasks": "Subtasks",
     "checklists": "Checklisten",
     "click-to-star": "Klicken Sie, um das Board mit einem Stern zu markieren.",
     "click-to-unstar": "Klicken Sie, um den Stern vom Board zu entfernen.",
@@ -163,7 +167,8 @@
     "comment-only": "Nur kommentierbar",
     "comment-only-desc": "Kann Karten nur Kommentieren",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Sind Sie sicher, dass Sie die Checkliste löschen möchten?",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Kopiere Link zur Karte in die Zwischenablage",
     "copyCardPopup-title": "Karte kopieren",
     "copyChecklistToManyCardsPopup-title": "Checklistenvorlage in mehrere Karten kopieren",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Löschen kann nicht rückgängig gemacht werden. Sie werden alle Listen, Karten und Aktionen, die mit diesem Board verbunden sind, verlieren.",
     "delete-board-confirm-popup": "Alle Listen, Karten, Labels und Akivitäten werden gelöscht und Sie können die Inhalte des Boards nicht wiederherstellen! Die Aktion kann nicht rückgängig gemacht werden.",
     "boardDeletePopup-title": "Board löschen?",
-    "delete-board": "Board löschen"
+    "delete-board": "Board löschen",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/el.i18n.json b/i18n/el.i18n.json
index cd00671a..0cfb4b25 100644
--- a/i18n/el.i18n.json
+++ b/i18n/el.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accept",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Προσθήκη",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Προσθήκη Κάρτας",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Αλλαγή Κωδικού",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Αλλαγή Ρυθμίσεων",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Υπολογιστής",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/en-GB.i18n.json b/i18n/en-GB.i18n.json
index 0fe7b237..f900def4 100644
--- a/i18n/en-GB.i18n.json
+++ b/i18n/en-GB.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accept",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached _ attachment _ to _ card _",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Add",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/en.i18n.json b/i18n/en.i18n.json
index 9afadd29..d5488ad0 100644
--- a/i18n/en.i18n.json
+++ b/i18n/en.i18n.json
@@ -167,8 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
diff --git a/i18n/eo.i18n.json b/i18n/eo.i18n.json
index a0897302..3d8000c4 100644
--- a/i18n/eo.i18n.json
+++ b/i18n/eo.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Akcepti",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "Sendis %s al %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Aldoni",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Ŝangi pasvorton",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Ŝanĝi agordojn",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Komputilo",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/es-AR.i18n.json b/i18n/es-AR.i18n.json
index 97a740e2..95553e31 100644
--- a/i18n/es-AR.i18n.json
+++ b/i18n/es-AR.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Aceptar",
     "act-activity-notify": "[Wekan] Notificación de Actividad",
     "act-addAttachment": "adjunto __attachment__ a __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "lista de ítems __checklist__ agregada a __card__",
     "act-addChecklistItem": " __checklistItem__ agregada a lista de ítems __checklist__ en __card__",
     "act-addComment": "comentado en __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "eliminadas %s de %s",
     "activity-sent": "enviadas %s a %s",
     "activity-unjoined": "separadas %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "agregada lista de tareas a %s",
     "activity-checklist-item-added": "agregado item de lista de tareas a '%s' en %s",
     "add": "Agregar",
@@ -48,6 +50,7 @@
     "add-board": "Agregar Tablero",
     "add-card": "Agregar Tarjeta",
     "add-swimlane": "Agregar Calle",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Agregar Lista de Tareas",
     "add-checklist-item": "Agregar ítem a lista de tareas",
     "add-cover": "Agregar Portadas",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Cambiar Contraseña",
     "changePermissionsPopup-title": "Cambiar Permisos",
     "changeSettingsPopup-title": "Cambiar Opciones",
+    "subtasks": "Subtasks",
     "checklists": "Listas de ítems",
     "click-to-star": "Clickeá para darle una estrella a este tablero.",
     "click-to-unstar": "Clickeá para sacarle la estrella al tablero.",
@@ -163,7 +167,8 @@
     "comment-only": "Comentar solamente",
     "comment-only-desc": "Puede comentar en tarjetas solamente.",
     "computer": "Computadora",
-    "confirm-checklist-delete-dialog": "¿Estás segur@ que querés borrar la lista de ítems?",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copiar enlace a tarjeta en el portapapeles",
     "copyCardPopup-title": "Copiar Tarjeta",
     "copyChecklistToManyCardsPopup-title": "Copiar Plantilla Checklist a Muchas Tarjetas",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/es.i18n.json b/i18n/es.i18n.json
index fa4f2f11..67f4d46e 100644
--- a/i18n/es.i18n.json
+++ b/i18n/es.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Aceptar",
     "act-activity-notify": "[Wekan] Notificación de actividad",
     "act-addAttachment": "ha adjuntado __attachment__ a __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "ha añadido la lista de verificación __checklist__ a __card__",
     "act-addChecklistItem": "ha añadido __checklistItem__ a la lista de verificación __checklist__ en __card__",
     "act-addComment": "ha comentado en __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "ha eliminado %s de %s",
     "activity-sent": "ha enviado %s a %s",
     "activity-unjoined": "se ha desvinculado de %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "ha añadido una lista de verificación a %s",
     "activity-checklist-item-added": "ha añadido el elemento de la lista de verificación a '%s' en %s",
     "add": "Añadir",
@@ -48,6 +50,7 @@
     "add-board": "Añadir tablero",
     "add-card": "Añadir una tarjeta",
     "add-swimlane": "Añadir un carril de flujo",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Añadir una lista de verificación",
     "add-checklist-item": "Añadir un elemento a la lista de verificación",
     "add-cover": "Añadir portada",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Cambiar la contraseña",
     "changePermissionsPopup-title": "Cambiar los permisos",
     "changeSettingsPopup-title": "Cambiar las preferencias",
+    "subtasks": "Subtasks",
     "checklists": "Lista de verificación",
     "click-to-star": "Haz clic para destacar este tablero.",
     "click-to-unstar": "Haz clic para dejar de destacar este tablero.",
@@ -163,7 +167,8 @@
     "comment-only": "Sólo comentarios",
     "comment-only-desc": "Solo puedes comentar en las tarjetas.",
     "computer": "el ordenador",
-    "confirm-checklist-delete-dialog": "¿Seguro que desea eliminar la lista de verificación?",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copiar el enlace de la tarjeta al portapapeles",
     "copyCardPopup-title": "Copiar la tarjeta",
     "copyChecklistToManyCardsPopup-title": "Copiar la plantilla de la lista de verificación en varias tarjetas",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Se eliminarán todas las listas, tarjetas y acciones asociadas a este tablero. Esta acción no puede deshacerse.",
     "delete-board-confirm-popup": "Se eliminarán todas las listas, tarjetas, etiquetas y actividades, y no podrás recuperar los contenidos del tablero. Esta acción no puede deshacerse.",
     "boardDeletePopup-title": "¿Borrar el tablero?",
-    "delete-board": "Borrar el tablero"
+    "delete-board": "Borrar el tablero",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/eu.i18n.json b/i18n/eu.i18n.json
index 9bd3510a..9ca140d8 100644
--- a/i18n/eu.i18n.json
+++ b/i18n/eu.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Onartu",
     "act-activity-notify": "[Wekan] Jarduera-jakinarazpena",
     "act-addAttachment": "__attachment__ __card__ txartelera erantsita",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "gehituta checklist __checklist__ __card__ -ri",
     "act-addChecklistItem": "gehituta __checklistItem__ checklist __checklist__ on __card__ -ri",
     "act-addComment": "__card__ txartelean iruzkina: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "%s %s(e)tik kenduta",
     "activity-sent": "%s %s(e)ri bidalita",
     "activity-unjoined": "%s utzita",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "egiaztaketa zerrenda %s(e)ra gehituta",
     "activity-checklist-item-added": "egiaztaketa zerrendako elementuak '%s'(e)ra gehituta %s(e)n",
     "add": "Gehitu",
@@ -48,6 +50,7 @@
     "add-board": "Gehitu arbela",
     "add-card": "Gehitu txartela",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Gehitu egiaztaketa zerrenda",
     "add-checklist-item": "Gehitu elementu bat egiaztaketa zerrendara",
     "add-cover": "Gehitu azala",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Aldatu pasahitza",
     "changePermissionsPopup-title": "Aldatu baimenak",
     "changeSettingsPopup-title": "Aldatu ezarpenak",
+    "subtasks": "Subtasks",
     "checklists": "Egiaztaketa zerrenda",
     "click-to-star": "Egin klik arbel honi izarra jartzeko",
     "click-to-unstar": "Egin klik arbel honi izarra kentzeko",
@@ -163,7 +167,8 @@
     "comment-only": "Iruzkinak besterik ez",
     "comment-only-desc": "Iruzkinak txarteletan soilik egin ditzake",
     "computer": "Ordenagailua",
-    "confirm-checklist-delete-dialog": "Ziur zaude kontrol-zerrenda ezabatu nahi duzula",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Kopiatu txartela arbelera",
     "copyCardPopup-title": "Kopiatu txartela",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/fa.i18n.json b/i18n/fa.i18n.json
index caa87ded..481a56ac 100644
--- a/i18n/fa.i18n.json
+++ b/i18n/fa.i18n.json
@@ -2,6 +2,7 @@
     "accept": "پذیرش",
     "act-activity-notify": "[wekan] اطلاع فعالیت",
     "act-addAttachment": "پیوست __attachment__ به __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "سیاهه __checklist__ به __card__ افزوده شد",
     "act-addChecklistItem": "__checklistItem__ به سیاهه __checklist__ در __card__ افزوده شد",
     "act-addComment": "درج نظر برای __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "%s از %s حذف شد",
     "activity-sent": "ارسال %s به %s",
     "activity-unjoined": "قطع اتصال %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "سیاهه به %s اضافه شد",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "افزودن",
@@ -48,6 +50,7 @@
     "add-board": "افزودن برد",
     "add-card": "افزودن کارت",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "افزودن چک لیست",
     "add-checklist-item": "افزودن مورد به سیاهه",
     "add-cover": "جلد کردن",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "تغییر کلمه عبور",
     "changePermissionsPopup-title": "تغییر دسترسی‌ها",
     "changeSettingsPopup-title": "تغییر تنظیمات",
+    "subtasks": "Subtasks",
     "checklists": "سیاهه‌ها",
     "click-to-star": "با کلیک کردن ستاره بدهید",
     "click-to-unstar": "با کلیک کردن ستاره را کم کنید",
@@ -163,7 +167,8 @@
     "comment-only": "فقط نظر",
     "comment-only-desc": "فقط می‌تواند روی کارت‌ها نظر دهد.",
     "computer": "رایانه",
-    "confirm-checklist-delete-dialog": "مطمئنید که می‌خواهید سیاهه را حذف کنید؟",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "درج پیوند کارت در حافظه",
     "copyCardPopup-title": "کپی کارت",
     "copyChecklistToManyCardsPopup-title": "کپی قالب کارت به کارت‌های متعدد",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/fi.i18n.json b/i18n/fi.i18n.json
index 34e58d1b..3677dacb 100644
--- a/i18n/fi.i18n.json
+++ b/i18n/fi.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Hyväksy",
     "act-activity-notify": "[Wekan] Toimintailmoitus",
     "act-addAttachment": "liitetty __attachment__ kortille __card__",
+    "act-addSubtask": "lisätty alitehtävä __checklist__ kortille __card__",
     "act-addChecklist": "lisätty tarkistuslista __checklist__ kortille __card__",
     "act-addChecklistItem": "lisätty kohta __checklistItem__ tarkistuslistaan __checklist__ kortilla __card__",
     "act-addComment": "kommentoitu __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "poistettu %s kohteesta %s",
     "activity-sent": "lähetetty %s kohteeseen %s",
     "activity-unjoined": "peruttu %s liittyminen",
+    "activity-subtask-added": "lisätty alitehtävä kohteeseen %s",
     "activity-checklist-added": "lisätty tarkistuslista kortille %s",
     "activity-checklist-item-added": "lisäsi kohdan tarkistuslistaan '%s' kortilla %s",
     "add": "Lisää",
@@ -48,6 +50,7 @@
     "add-board": "Lisää taulu",
     "add-card": "Lisää kortti",
     "add-swimlane": "Lisää Swimlane",
+    "add-subtask": "Lisää alitehtävä",
     "add-checklist": "Lisää tarkistuslista",
     "add-checklist-item": "Lisää kohta tarkistuslistaan",
     "add-cover": "Lisää kansi",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Vaihda salasana",
     "changePermissionsPopup-title": "Muokkaa oikeuksia",
     "changeSettingsPopup-title": "Muokkaa asetuksia",
+    "subtasks": "Alitehtävät",
     "checklists": "Tarkistuslistat",
     "click-to-star": "Klikkaa merkataksesi tämä taulu tähdellä.",
     "click-to-unstar": "Klikkaa poistaaksesi tähtimerkintä taululta.",
@@ -163,7 +167,8 @@
     "comment-only": "Vain kommentointi",
     "comment-only-desc": "Voi vain kommentoida kortteja",
     "computer": "Tietokone",
-    "confirm-checklist-delete-dialog": "Haluatko varmasti poistaa tarkistuslistan",
+    "confirm-subtask-delete-dialog": "Oletko varma että haluat poistaa alitehtävän?",
+    "confirm-checklist-delete-dialog": "Oletko varma että haluat poistaa tarkistuslistan?",
     "copy-card-link-to-clipboard": "Kopioi kortin linkki leikepöydälle",
     "copyCardPopup-title": "Kopioi kortti",
     "copyChecklistToManyCardsPopup-title": "Kopioi tarkistuslistan malli monille korteille",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Poistaminen on lopullista. Menetät kaikki listat, kortit ja toimet tällä taululla.",
     "delete-board-confirm-popup": "Kaikki listat, kortit, tunnisteet ja toimet poistetaan ja et pysty palauttamaan taulun sisältöä. Tätä ei voi peruuttaa.",
     "boardDeletePopup-title": "Poista taulu?",
-    "delete-board": "Poista taulu"
+    "delete-board": "Poista taulu",
+    "default-subtasks-board": "Alitehtävät __board__ taululle",
+    "default": "Oletus",
+    "queue": "Jono",
+    "subtask-settings": "Alitehtävä asetukset",
+    "boardSubtaskSettingsPopup-title": "Taulu alitehtävien asetukset",
+    "show-subtasks-field": "Korteilla voi olla alitehtäviä",
+    "deposit-subtasks-board": "Tallenta alitehtävät tälle taululle:",
+    "deposit-subtasks-list": "Laskeutumislista alatehtäville tallennettu tänne:",
+    "show-parent-in-minicard": "Näytä ylätehtävä minikortilla:",
+    "prefix-with-full-path": "Etuliite koko polulla",
+    "prefix-with-parent": "Etuliite ylätehtävällä",
+    "subtext-with-full-path": "Aliteksti koko polulla",
+    "subtext-with-parent": "Aliteksti ylätehtävällä",
+    "change-card-parent": "Muuta kortin ylätehtävää",
+    "parent-card": "Ylätehtävä kortti",
+    "source-board": "Lähdetaulu",
+    "no-parent": "Älä näytä ylätehtävää"
 }
\ No newline at end of file
diff --git a/i18n/fr.i18n.json b/i18n/fr.i18n.json
index cae8c836..22a3e8cf 100644
--- a/i18n/fr.i18n.json
+++ b/i18n/fr.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accepter",
     "act-activity-notify": "[Wekan] Notification d'activité",
     "act-addAttachment": "a joint __attachment__ à __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "a ajouté la checklist __checklist__ à __card__",
     "act-addChecklistItem": "a ajouté l'élément __checklistItem__ à la checklist __checklist__ de __card__",
     "act-addComment": "a commenté __card__ : __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "a supprimé %s de %s",
     "activity-sent": "a envoyé %s vers %s",
     "activity-unjoined": "a quitté %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "a ajouté une checklist à %s",
     "activity-checklist-item-added": "a ajouté un élément à la checklist '%s' dans %s",
     "add": "Ajouter",
@@ -48,6 +50,7 @@
     "add-board": "Ajouter un tableau",
     "add-card": "Ajouter une carte",
     "add-swimlane": "Ajouter un couloir",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Ajouter une checklist",
     "add-checklist-item": "Ajouter un élément à la checklist",
     "add-cover": "Ajouter la couverture",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Modifier le mot de passe",
     "changePermissionsPopup-title": "Modifier les permissions",
     "changeSettingsPopup-title": "Modifier les paramètres",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Cliquez pour ajouter ce tableau aux favoris.",
     "click-to-unstar": "Cliquez pour retirer ce tableau des favoris.",
@@ -163,7 +167,8 @@
     "comment-only": "Commentaire uniquement",
     "comment-only-desc": "Ne peut que commenter des cartes.",
     "computer": "Ordinateur",
-    "confirm-checklist-delete-dialog": "Êtes-vous sûr de vouloir supprimer la checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copier le lien vers la carte dans le presse-papier",
     "copyCardPopup-title": "Copier la carte",
     "copyChecklistToManyCardsPopup-title": "Copier le modèle de checklist vers plusieurs cartes",
@@ -475,5 +480,22 @@
     "board-delete-notice": "La suppression est définitive. Vous perdrez toutes vos listes, cartes et actions associées à ce tableau.",
     "delete-board-confirm-popup": "Toutes les listes, cartes, étiquettes et activités seront supprimées et vous ne pourrez pas retrouver le contenu du tableau. Il n'y a pas d'annulation possible.",
     "boardDeletePopup-title": "Supprimer le tableau ?",
-    "delete-board": "Supprimer le tableau"
+    "delete-board": "Supprimer le tableau",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/gl.i18n.json b/i18n/gl.i18n.json
index 25e3e662..5422314d 100644
--- a/i18n/gl.i18n.json
+++ b/i18n/gl.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Aceptar",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Engadir",
@@ -48,6 +50,7 @@
     "add-board": "Engadir taboleiro",
     "add-card": "Engadir tarxeta",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Cambiar o contrasinal",
     "changePermissionsPopup-title": "Cambiar os permisos",
     "changeSettingsPopup-title": "Cambiar a configuración",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computador",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/he.i18n.json b/i18n/he.i18n.json
index 6d5dd812..f15c7f9b 100644
--- a/i18n/he.i18n.json
+++ b/i18n/he.i18n.json
@@ -2,6 +2,7 @@
     "accept": "אישור",
     "act-activity-notify": "[Wekan] הודעת פעילות",
     "act-addAttachment": " __attachment__ צורף לכרטיס __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "רשימת משימות __checklist__ נוספה ל __card__",
     "act-addChecklistItem": " __checklistItem__ נוסף לרשימת משימות __checklist__ בכרטיס __card__",
     "act-addComment": "התקבלה תגובה על הכרטיס __card__:‏ __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "%s הוסר מ%s",
     "activity-sent": "%s נשלח ל%s",
     "activity-unjoined": "בטל צירוף %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "נוספה רשימת משימות אל %s",
     "activity-checklist-item-added": "נוסף פריט רשימת משימות אל ‚%s‘ תחת %s",
     "add": "הוספה",
@@ -48,6 +50,7 @@
     "add-board": "הוספת לוח",
     "add-card": "הוספת כרטיס",
     "add-swimlane": "הוספת מסלול",
+    "add-subtask": "Add Subtask",
     "add-checklist": "הוספת רשימת מטלות",
     "add-checklist-item": "הוספת פריט לרשימת משימות",
     "add-cover": "הוספת כיסוי",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "החלפת ססמה",
     "changePermissionsPopup-title": "שינוי הרשאות",
     "changeSettingsPopup-title": "שינוי הגדרות",
+    "subtasks": "Subtasks",
     "checklists": "רשימות",
     "click-to-star": "יש ללחוץ להוספת הלוח למועדפים.",
     "click-to-unstar": "יש ללחוץ להסרת הלוח מהמועדפים.",
@@ -163,7 +167,8 @@
     "comment-only": "הערה בלבד",
     "comment-only-desc": "ניתן להעיר על כרטיסים בלבד.",
     "computer": "מחשב",
-    "confirm-checklist-delete-dialog": "האם אתה בטוח שברצונך למחוק את רשימת המשימות",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "העתקת קישור הכרטיס ללוח הגזירים",
     "copyCardPopup-title": "העתק כרטיס",
     "copyChecklistToManyCardsPopup-title": "העתקת תבנית רשימת מטלות למגוון כרטיסים",
@@ -475,5 +480,22 @@
     "board-delete-notice": "מחיקה היא לצמיתות. כל הרשימות, הכרטיבים והפעולות שקשורים בלוח הזה ילכו לאיבוד.",
     "delete-board-confirm-popup": "כל הרשימות, הכרטיסים, התווית והפעולות יימחקו ולא תהיה לך דרך לשחזר את תכני הלוח. אין אפשרות לבטל.",
     "boardDeletePopup-title": "למחוק את הלוח?",
-    "delete-board": "מחיקת לוח"
+    "delete-board": "מחיקת לוח",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/hu.i18n.json b/i18n/hu.i18n.json
index e14e7995..07379611 100644
--- a/i18n/hu.i18n.json
+++ b/i18n/hu.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Elfogadás",
     "act-activity-notify": "[Wekan] Tevékenység értesítés",
     "act-addAttachment": "__attachment__ mellékletet csatolt a kártyához: __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "__checklist__ ellenőrzőlistát adott hozzá a kártyához: __card__",
     "act-addChecklistItem": "__checklistItem__ elemet adott hozzá a(z) __checklist__ ellenőrzőlistához ezen a kártyán: __card__",
     "act-addComment": "hozzászólt a(z) __card__ kártyán: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "%s eltávolítva innen: %s",
     "activity-sent": "%s elküldve ide: %s",
     "activity-unjoined": "%s kilépett a csoportból",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "ellenőrzőlista hozzáadva ehhez: %s",
     "activity-checklist-item-added": "ellenőrzőlista elem hozzáadva ehhez: „%s”, ebben: %s",
     "add": "Hozzáadás",
@@ -48,6 +50,7 @@
     "add-board": "Tábla hozzáadása",
     "add-card": "Kártya hozzáadása",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Ellenőrzőlista hozzáadása",
     "add-checklist-item": "Elem hozzáadása az ellenőrzőlistához",
     "add-cover": "Borító hozzáadása",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Jelszó megváltoztatása",
     "changePermissionsPopup-title": "Jogosultságok megváltoztatása",
     "changeSettingsPopup-title": "Beállítások megváltoztatása",
+    "subtasks": "Subtasks",
     "checklists": "Ellenőrzőlisták",
     "click-to-star": "Kattintson a tábla csillagozásához.",
     "click-to-unstar": "Kattintson a tábla csillagának eltávolításához.",
@@ -163,7 +167,8 @@
     "comment-only": "Csak megjegyzés",
     "comment-only-desc": "Csak megjegyzést írhat a kártyákhoz.",
     "computer": "Számítógép",
-    "confirm-checklist-delete-dialog": "Biztosan törölni szeretné az ellenőrzőlistát?",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Kártya hivatkozásának másolása a vágólapra",
     "copyCardPopup-title": "Kártya másolása",
     "copyChecklistToManyCardsPopup-title": "Ellenőrzőlista sablon másolása több kártyára",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/hy.i18n.json b/i18n/hy.i18n.json
index 0911aed1..124bc7dd 100644
--- a/i18n/hy.i18n.json
+++ b/i18n/hy.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Ընդունել",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "ավելացրել է __checklistItem__ __checklist__ on __card__-ին",
     "act-addComment": "մեկնաբանել է __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Add",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/id.i18n.json b/i18n/id.i18n.json
index 3954f67c..a80444a7 100644
--- a/i18n/id.i18n.json
+++ b/i18n/id.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Terima",
     "act-activity-notify": "[Wekan] Pemberitahuan Kegiatan",
     "act-addAttachment": "Lampirkan__attachment__ke__kartu__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "Dikomentari di__kartu__:__comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "dihapus %s dari %s",
     "activity-sent": "terkirim %s ke %s",
     "activity-unjoined": "tidak bergabung %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "daftar periksa ditambahkan ke %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Tambah",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Tambahkan hal ke daftar periksa",
     "add-cover": "Tambahkan Sampul",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Ubah Kata Sandi",
     "changePermissionsPopup-title": "Ubah Hak Akses",
     "changeSettingsPopup-title": "Ubah Setelan",
+    "subtasks": "Subtasks",
     "checklists": "Daftar Periksa",
     "click-to-star": "Klik untuk tandai bintang panel ini",
     "click-to-unstar": "Klik untuk tidak memberi bintang pada panel ini",
@@ -163,7 +167,8 @@
     "comment-only": "Hanya komentar",
     "comment-only-desc": "Bisa komen hanya di kartu",
     "computer": "Komputer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/ig.i18n.json b/i18n/ig.i18n.json
index f522a92c..90ce0668 100644
--- a/i18n/ig.i18n.json
+++ b/i18n/ig.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Kwere",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Tinye",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/it.i18n.json b/i18n/it.i18n.json
index 99c84699..b067d567 100644
--- a/i18n/it.i18n.json
+++ b/i18n/it.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accetta",
     "act-activity-notify": "[Wekan] Notifiche attività",
     "act-addAttachment": "ha allegato __attachment__ a __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "aggiunta checklist __checklist__ a __card__",
     "act-addChecklistItem": "aggiunto __checklistItem__ alla checklist __checklist__ di __card__",
     "act-addComment": "ha commentato su __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "rimosso %s da %s",
     "activity-sent": "inviato %s a %s",
     "activity-unjoined": "ha abbandonato %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "aggiunta checklist a %s",
     "activity-checklist-item-added": "Aggiunto l'elemento checklist a '%s' in %s",
     "add": "Aggiungere",
@@ -48,6 +50,7 @@
     "add-board": "Aggiungi Bacheca",
     "add-card": "Aggiungi Scheda",
     "add-swimlane": "Aggiungi Corsia",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Aggiungi Checklist",
     "add-checklist-item": "Aggiungi un elemento alla checklist",
     "add-cover": "Aggiungi copertina",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Cambia password",
     "changePermissionsPopup-title": "Cambia permessi",
     "changeSettingsPopup-title": "Cambia impostazioni",
+    "subtasks": "Subtasks",
     "checklists": "Checklist",
     "click-to-star": "Clicca per stellare questa bacheca",
     "click-to-unstar": "Clicca per togliere la stella da questa bacheca",
@@ -163,7 +167,8 @@
     "comment-only": "Solo commenti",
     "comment-only-desc": "Puoi commentare solo le schede.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Sei sicuro di voler cancellare questa checklist?",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copia link della scheda sulla clipboard",
     "copyCardPopup-title": "Copia Scheda",
     "copyChecklistToManyCardsPopup-title": "Copia template checklist su più schede",
@@ -475,5 +480,22 @@
     "board-delete-notice": "L'eliminazione è permanente. Tutte le azioni, liste e schede associate a questa bacheca andranno perse.",
     "delete-board-confirm-popup": "Tutte le liste, schede, etichette e azioni saranno rimosse e non sarai più in grado di recuperare il contenuto della bacheca. L'azione non è annullabile.",
     "boardDeletePopup-title": "Eliminare la bacheca?",
-    "delete-board": "Elimina bacheca"
+    "delete-board": "Elimina bacheca",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/ja.i18n.json b/i18n/ja.i18n.json
index 4b8a6d8d..9910b002 100644
--- a/i18n/ja.i18n.json
+++ b/i18n/ja.i18n.json
@@ -2,6 +2,7 @@
     "accept": "受け入れ",
     "act-activity-notify": "[Wekan] アクティビティ通知",
     "act-addAttachment": "__card__ に __attachment__ を添付しました",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "__card__ に __checklist__ を追加しました",
     "act-addChecklistItem": "__checklist__ on __card__ に __checklistItem__ を追加しました",
     "act-addComment": "__card__: __comment__ をコメントしました",
@@ -41,6 +42,7 @@
     "activity-removed": "%s を %s から削除しました",
     "activity-sent": "%s を %s に送りました",
     "activity-unjoined": "%s への参加を止めました",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "%s にチェックリストを追加しました",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "追加",
@@ -48,6 +50,7 @@
     "add-board": "ボードを追加",
     "add-card": "カードを追加",
     "add-swimlane": "スイムレーンを追加",
+    "add-subtask": "Add Subtask",
     "add-checklist": "チェックリストを追加",
     "add-checklist-item": "チェックリストに項目を追加",
     "add-cover": "カバーの追加",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "パスワードの変更",
     "changePermissionsPopup-title": "パーミッションの変更",
     "changeSettingsPopup-title": "設定の変更",
+    "subtasks": "Subtasks",
     "checklists": "チェックリスト",
     "click-to-star": "ボードにスターをつける",
     "click-to-unstar": "ボードからスターを外す",
@@ -163,7 +167,8 @@
     "comment-only": "コメントのみ",
     "comment-only-desc": "カードにのみコメント可能",
     "computer": "コンピューター",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "カードへのリンクをクリップボードにコピー",
     "copyCardPopup-title": "カードをコピー",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "すべてのリスト、カード、ラベル、アクティビティは削除され、ボードの内容を元に戻すことができません。",
     "boardDeletePopup-title": "ボードを削除しますか？",
-    "delete-board": "ボードを削除"
+    "delete-board": "ボードを削除",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/ka.i18n.json b/i18n/ka.i18n.json
index 53c2f91a..83751851 100644
--- a/i18n/ka.i18n.json
+++ b/i18n/ka.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accept",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Add",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/km.i18n.json b/i18n/km.i18n.json
index 9484c7cc..e1a26fcb 100644
--- a/i18n/km.i18n.json
+++ b/i18n/km.i18n.json
@@ -2,6 +2,7 @@
     "accept": "យល់ព្រម",
     "act-activity-notify": "[Wekan] សកម្មភាពជូនដំណឹង",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Add",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/ko.i18n.json b/i18n/ko.i18n.json
index 97963a8a..d9a980df 100644
--- a/i18n/ko.i18n.json
+++ b/i18n/ko.i18n.json
@@ -2,6 +2,7 @@
     "accept": "확인",
     "act-activity-notify": "[Wekan] 활동 알림",
     "act-addAttachment": "__attachment__를 __card__에 첨부",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "__card__에 내용 추가 : __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "%s를 %s에서 삭제함",
     "activity-sent": "%s를 %s로 보냄",
     "activity-unjoined": "%s에서 멤버 해제",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "%s에 체크리스트를 추가함",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "추가",
@@ -48,6 +50,7 @@
     "add-board": "보드 추가",
     "add-card": "카드 추가",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "체크리스트 추가",
     "add-checklist-item": "체크리스트에 항목 추가",
     "add-cover": "커버 추가",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "암호 변경",
     "changePermissionsPopup-title": "권한 변경",
     "changeSettingsPopup-title": "설정 변경",
+    "subtasks": "Subtasks",
     "checklists": "체크리스트",
     "click-to-star": "보드에 별 추가.",
     "click-to-unstar": "보드에 별 삭제.",
@@ -163,7 +167,8 @@
     "comment-only": "댓글만 입력 가능",
     "comment-only-desc": "카드에 댓글만 달수 있습니다.",
     "computer": "내 컴퓨터",
-    "confirm-checklist-delete-dialog": "정말 이 체크리스트를 삭제할까요?",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "클립보드에 카드의 링크가 복사되었습니다.",
     "copyCardPopup-title": "카드 복사",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/lv.i18n.json b/i18n/lv.i18n.json
index 46d958cc..b79c7043 100644
--- a/i18n/lv.i18n.json
+++ b/i18n/lv.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Piekrist",
     "act-activity-notify": "[Wekan] Aktivitātes paziņojums",
     "act-addAttachment": "pievienots __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "pievienots checklist __checklist__ to __card__",
     "act-addChecklistItem": "pievienots __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "komentēja __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Add",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/mn.i18n.json b/i18n/mn.i18n.json
index b5b97822..7f0c2fc1 100644
--- a/i18n/mn.i18n.json
+++ b/i18n/mn.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Зөвшөөрөх",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "_attachment__ хавсралтыг __card__-д хавсаргав",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Нэмэх",
@@ -48,6 +50,7 @@
     "add-board": "Самбар нэмэх",
     "add-card": "Карт нэмэх",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Чеклист нэмэх",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Нууц үг солих",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Тохиргоо өөрчлөх",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/nb.i18n.json b/i18n/nb.i18n.json
index 1d09cb7c..1838aa0f 100644
--- a/i18n/nb.i18n.json
+++ b/i18n/nb.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Godta",
     "act-activity-notify": "[Wekan] Aktivitetsvarsel",
     "act-addAttachment": "la ved __attachment__ til __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "kommenterte til __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "fjernet %s fra %s",
     "activity-sent": "sendte %s til %s",
     "activity-unjoined": "forlot %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "la til sjekkliste til %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Legg til",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Nytt punkt på sjekklisten",
     "add-cover": "Nytt omslag",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Endre passord",
     "changePermissionsPopup-title": "Endre tillatelser",
     "changeSettingsPopup-title": "Endre innstillinger",
+    "subtasks": "Subtasks",
     "checklists": "Sjekklister",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/nl.i18n.json b/i18n/nl.i18n.json
index 5dd23d41..90832ea6 100644
--- a/i18n/nl.i18n.json
+++ b/i18n/nl.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accepteren",
     "act-activity-notify": "[Wekan] Activiteit Notificatie",
     "act-addAttachment": "__attachment__ als bijlage toegevoegd aan __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "__checklist__ toegevoegd aan __card__",
     "act-addChecklistItem": "__checklistItem__ aan checklist toegevoegd aan __checklist__ op __card__",
     "act-addComment": "gereageerd op __card__:__comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "%s verwijderd van %s",
     "activity-sent": "%s gestuurd naar %s",
     "activity-unjoined": "uit %s gegaan",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "checklist toegevoegd aan %s",
     "activity-checklist-item-added": "checklist punt toegevoegd aan '%s' in '%s'",
     "add": "Toevoegen",
@@ -48,6 +50,7 @@
     "add-board": "Voeg Bord Toe",
     "add-card": "Voeg Kaart Toe",
     "add-swimlane": "Swimlane Toevoegen",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Voeg Checklist Toe",
     "add-checklist-item": "Voeg item toe aan checklist",
     "add-cover": "Voeg Cover Toe",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Wijzig wachtwoord",
     "changePermissionsPopup-title": "Wijzig permissies",
     "changeSettingsPopup-title": "Wijzig instellingen",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Klik om het bord als favoriet in te stellen",
     "click-to-unstar": "Klik om het bord uit favorieten weg te halen",
@@ -163,7 +167,8 @@
     "comment-only": "Alleen reageren",
     "comment-only-desc": "Kan alleen op kaarten reageren.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Weet u zeker dat u de checklist wilt verwijderen",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Kopieer kaart link naar klembord",
     "copyCardPopup-title": "Kopieer kaart",
     "copyChecklistToManyCardsPopup-title": "Checklist sjabloon kopiëren naar meerdere kaarten",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/pl.i18n.json b/i18n/pl.i18n.json
index 1d52d2ee..fcaa5bab 100644
--- a/i18n/pl.i18n.json
+++ b/i18n/pl.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Akceptuj",
     "act-activity-notify": "[Wekan] Powiadomienia - aktywności",
     "act-addAttachment": "załączono __attachement__ do __karty__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "dodano listę zadań __checklist__ to __card__",
     "act-addChecklistItem": "dodano __checklistItem__ do listy zadań __checklist__ na karcie __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "usunięto %s z %s",
     "activity-sent": "wysłano %s z %s",
     "activity-unjoined": "odłączono %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Dodaj",
@@ -48,6 +50,7 @@
     "add-board": "Dodaj tablicę",
     "add-card": "Dodaj kartę",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Dodaj listę kontrolną",
     "add-checklist-item": "Dodaj element do listy kontrolnej",
     "add-cover": "Dodaj okładkę",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Zmień hasło",
     "changePermissionsPopup-title": "Zmień uprawnienia",
     "changeSettingsPopup-title": "Zmień ustawienia",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Kliknij by odznaczyć tę tablicę.",
     "click-to-unstar": "Kliknij by usunąć odznaczenie tej tablicy.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Komputer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Skopiuj kartę",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/pt-BR.i18n.json b/i18n/pt-BR.i18n.json
index 15496c0d..f92f3d21 100644
--- a/i18n/pt-BR.i18n.json
+++ b/i18n/pt-BR.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Aceitar",
     "act-activity-notify": "[Wekan] Notificação de Atividade",
     "act-addAttachment": "anexo __attachment__ de __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ no __card__",
     "act-addChecklistItem": "adicionado __checklistitem__ para a lista de checagem __checklist__ em __card__",
     "act-addComment": "comentou em __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removeu %s de %s",
     "activity-sent": "enviou %s de %s",
     "activity-unjoined": "saiu de %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "Adicionado lista de verificação a %s",
     "activity-checklist-item-added": "adicionado o item de checklist para '%s' em %s",
     "add": "Novo",
@@ -48,6 +50,7 @@
     "add-board": "Adicionar Quadro",
     "add-card": "Adicionar Cartão",
     "add-swimlane": "Adicionar Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Adicionar Checklist",
     "add-checklist-item": "Adicionar um item à lista de verificação",
     "add-cover": "Adicionar Capa",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Alterar Senha",
     "changePermissionsPopup-title": "Alterar Permissões",
     "changeSettingsPopup-title": "Altera configurações",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Marcar quadro como favorito.",
     "click-to-unstar": "Remover quadro dos favoritos.",
@@ -163,7 +167,8 @@
     "comment-only": "Somente comentários",
     "comment-only-desc": "Pode comentar apenas em cartões.",
     "computer": "Computador",
-    "confirm-checklist-delete-dialog": "Tem a certeza de que pretende eliminar lista de verificação",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copiar link do cartão para a área de transferência",
     "copyCardPopup-title": "Copiar o cartão",
     "copyChecklistToManyCardsPopup-title": "Copiar modelo de checklist para vários cartões",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/pt.i18n.json b/i18n/pt.i18n.json
index 9f8b9b96..0c988d43 100644
--- a/i18n/pt.i18n.json
+++ b/i18n/pt.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Aceitar",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Adicionar",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computador",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/ro.i18n.json b/i18n/ro.i18n.json
index 0d854bbd..a70e3972 100644
--- a/i18n/ro.i18n.json
+++ b/i18n/ro.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accept",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Add",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/ru.i18n.json b/i18n/ru.i18n.json
index 1b85c355..1d55aedf 100644
--- a/i18n/ru.i18n.json
+++ b/i18n/ru.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Принять",
     "act-activity-notify": "[Wekan] Уведомление о действиях участников",
     "act-addAttachment": "вложено __attachment__ в __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "добавил контрольный список __checklist__ в __card__",
     "act-addChecklistItem": "добавил __checklistItem__ в контрольный список __checklist__ в __card__",
     "act-addComment": "прокомментировал __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "удалил %s из %s",
     "activity-sent": "отправил %s в %s",
     "activity-unjoined": "вышел из %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "добавил контрольный список в %s",
     "activity-checklist-item-added": "добавил пункт контрольного списка в '%s' в карточке %s",
     "add": "Создать",
@@ -48,6 +50,7 @@
     "add-board": "Добавить доску",
     "add-card": "Добавить карту",
     "add-swimlane": "Добавить дорожку",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Добавить контрольный список",
     "add-checklist-item": "Добавить пункт в контрольный список",
     "add-cover": "Прикрепить",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Изменить пароль",
     "changePermissionsPopup-title": "Изменить настройки доступа",
     "changeSettingsPopup-title": "Изменить Настройки",
+    "subtasks": "Subtasks",
     "checklists": "Контрольные списки",
     "click-to-star": "Добавить в  «Избранное»",
     "click-to-unstar": "Удалить из «Избранного»",
@@ -163,7 +167,8 @@
     "comment-only": "Только комментирование",
     "comment-only-desc": "Может комментировать только карточки.",
     "computer": "Загрузить с компьютера",
-    "confirm-checklist-delete-dialog": "Вы уверены, что хотите удалить контрольный список?",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Копировать ссылку на карточку в буфер обмена",
     "copyCardPopup-title": "Копировать карточку",
     "copyChecklistToManyCardsPopup-title": "Копировать шаблон контрольного списка в несколько карточек",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Удаление является постоянным. Вы потеряете все списки, карты и действия, связанные с этой доской.",
     "delete-board-confirm-popup": "Все списки, карточки, ярлыки и действия будут удалены, и вы не сможете восстановить содержимое доски. Отменить нельзя.",
     "boardDeletePopup-title": "Удалить доску?",
-    "delete-board": "Удалить доску"
+    "delete-board": "Удалить доску",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/sr.i18n.json b/i18n/sr.i18n.json
index 853e867d..6f25bc3b 100644
--- a/i18n/sr.i18n.json
+++ b/i18n/sr.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Prihvati",
     "act-activity-notify": "[Wekan] Obaveštenje o aktivnostima",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "uklonio %s iz %s",
     "activity-sent": "poslao %s %s-u",
     "activity-unjoined": "rastavio %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "lista je dodata u %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Dodaj",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Dodaj novu stavku u listu",
     "add-cover": "Dodaj zaglavlje",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Izmeni podešavanja",
+    "subtasks": "Subtasks",
     "checklists": "Liste",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/sv.i18n.json b/i18n/sv.i18n.json
index 164a5620..25bcf6f3 100644
--- a/i18n/sv.i18n.json
+++ b/i18n/sv.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Acceptera",
     "act-activity-notify": "[Wekan] Aktivitetsavisering",
     "act-addAttachment": "bifogade __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "lade till checklist __checklist__ till __card__",
     "act-addChecklistItem": "lade till __checklistItem__ till checklistan __checklist__ on __card__",
     "act-addComment": "kommenterade __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "tog bort %s från %s",
     "activity-sent": "skickade %s till %s",
     "activity-unjoined": "gick ur %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "lade kontrollista till %s",
     "activity-checklist-item-added": "lade checklista objekt till '%s' i %s",
     "add": "Lägg till",
@@ -48,6 +50,7 @@
     "add-board": "Lägg till anslagstavla",
     "add-card": "Lägg till kort",
     "add-swimlane": "Lägg till simbana",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Lägg till checklista",
     "add-checklist-item": "Lägg till ett objekt till kontrollista",
     "add-cover": "Lägg till omslag",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Ändra lösenord",
     "changePermissionsPopup-title": "Ändra behörigheter",
     "changeSettingsPopup-title": "Ändra inställningar",
+    "subtasks": "Subtasks",
     "checklists": "Kontrollistor",
     "click-to-star": "Klicka för att stjärnmärka denna anslagstavla.",
     "click-to-unstar": "Klicka för att ta bort stjärnmärkningen från denna anslagstavla.",
@@ -163,7 +167,8 @@
     "comment-only": "Kommentera endast",
     "comment-only-desc": "Kan endast kommentera kort.",
     "computer": "Dator",
-    "confirm-checklist-delete-dialog": "Är du säker på att du vill ta bort checklista",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Kopiera kortlänk till urklipp",
     "copyCardPopup-title": "Kopiera kort",
     "copyChecklistToManyCardsPopup-title": "Kopiera checklist-mallen till flera kort",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Borttagningen är permanent. Du kommer förlora alla listor, kort och händelser kopplade till den här anslagstavlan.",
     "delete-board-confirm-popup": "Alla listor, kort, etiketter och aktiviteter kommer tas bort och du kommer inte kunna återställa anslagstavlans innehåll. Det går inte att ångra.",
     "boardDeletePopup-title": "Ta bort anslagstavla?",
-    "delete-board": "Ta bort anslagstavla"
+    "delete-board": "Ta bort anslagstavla",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/ta.i18n.json b/i18n/ta.i18n.json
index 53c2f91a..83751851 100644
--- a/i18n/ta.i18n.json
+++ b/i18n/ta.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Accept",
     "act-activity-notify": "[Wekan] Activity Notification",
     "act-addAttachment": "attached __attachment__ to __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "commented on __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Add",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Add an item to checklist",
     "add-cover": "Add Cover",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/th.i18n.json b/i18n/th.i18n.json
index e7048f6e..fcde0e71 100644
--- a/i18n/th.i18n.json
+++ b/i18n/th.i18n.json
@@ -2,6 +2,7 @@
     "accept": "ยอมรับ",
     "act-activity-notify": "[Wekan] แจ้งกิจกรรม",
     "act-addAttachment": "แนบไฟล์ __attachment__ ไปยัง __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "ออกความเห็นที่ __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "ลบ %s จาด %s",
     "activity-sent": "ส่ง %s ถึง %s",
     "activity-unjoined": "ยกเลิกเข้าร่วม %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "รายการถูกเพิ่มไป %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "เพิ่ม",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "เพิ่มรายการตรวจสอบ",
     "add-cover": "เพิ่มหน้าปก",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "เปลี่ยนรหัสผ่าน",
     "changePermissionsPopup-title": "เปลี่ยนสิทธิ์",
     "changeSettingsPopup-title": "เปลี่ยนการตั้งค่า",
+    "subtasks": "Subtasks",
     "checklists": "รายการตรวจสอบ",
     "click-to-star": "คลิกดาวบอร์ดนี้",
     "click-to-unstar": "คลิกยกเลิกดาวบอร์ดนี้",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "คอมพิวเตอร์",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/tr.i18n.json b/i18n/tr.i18n.json
index 03798130..c0d2026a 100644
--- a/i18n/tr.i18n.json
+++ b/i18n/tr.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Kabul Et",
     "act-activity-notify": "[Wekan] Etkinlik Bildirimi",
     "act-addAttachment": "__card__ kartına __attachment__ dosyasını ekledi",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "__card__ kartında __checklist__ yapılacak listesini ekledi",
     "act-addChecklistItem": "__checklistItem__ öğesini __card__ kartındaki __checklist__ yapılacak listesine ekledi",
     "act-addComment": "__card__ kartına bir yorum bıraktı: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "%s i %s ten kaldırdı",
     "activity-sent": "%s i %s e gönderdi",
     "activity-unjoined": "%s içinden ayrıldı",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "%s içine yapılacak listesi ekledi",
     "activity-checklist-item-added": "%s içinde %s yapılacak listesine öğe ekledi",
     "add": "Ekle",
@@ -48,6 +50,7 @@
     "add-board": "Pano Ekle",
     "add-card": "Kart Ekle",
     "add-swimlane": "Kulvar Ekle",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Yapılacak Listesi Ekle",
     "add-checklist-item": "Yapılacak listesine yeni bir öğe ekle",
     "add-cover": "Kapak resmi ekle",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Parola Değiştir",
     "changePermissionsPopup-title": "Yetkileri Değiştirme",
     "changeSettingsPopup-title": "Ayarları değiştir",
+    "subtasks": "Subtasks",
     "checklists": "Yapılacak Listeleri",
     "click-to-star": "Bu panoyu yıldızlamak için tıkla.",
     "click-to-unstar": "Bu panunun yıldızını kaldırmak için tıkla.",
@@ -163,7 +167,8 @@
     "comment-only": "Sadece yorum",
     "comment-only-desc": "Sadece kartlara yorum yazabilir.",
     "computer": "Bilgisayar",
-    "confirm-checklist-delete-dialog": "Yapılacak listesini silmek istediğinize emin misiniz",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Kartın linkini kopyala",
     "copyCardPopup-title": "Kartı Kopyala",
     "copyChecklistToManyCardsPopup-title": "Yapılacaklar Listesi şemasını birden çok karta kopyala",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/uk.i18n.json b/i18n/uk.i18n.json
index ef76ed5f..459aad9e 100644
--- a/i18n/uk.i18n.json
+++ b/i18n/uk.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Прийняти",
     "act-activity-notify": "[Wekan] Сповіщення Діяльності",
     "act-addAttachment": "__attachment__ додане до __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "комментар в __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "removed %s from %s",
     "activity-sent": "sent %s to %s",
     "activity-unjoined": "unjoined %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "added checklist to %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Додати",
@@ -48,6 +50,7 @@
     "add-board": "Add Board",
     "add-card": "Add Card",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Add Checklist",
     "add-checklist-item": "Додати елемент в список",
     "add-cover": "Додати обкладинку",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/vi.i18n.json b/i18n/vi.i18n.json
index 320942e1..e785f0d0 100644
--- a/i18n/vi.i18n.json
+++ b/i18n/vi.i18n.json
@@ -2,6 +2,7 @@
     "accept": "Chấp nhận",
     "act-activity-notify": "[Wekan] Thông Báo Hoạt Động",
     "act-addAttachment": "đã đính kèm __attachment__ vào __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "đã bình luận trong __card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "đã xóa %s từ %s",
     "activity-sent": "gửi %s đến %s",
     "activity-unjoined": "đã rời khỏi %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "đã thêm checklist vào %s",
     "activity-checklist-item-added": "added checklist item to '%s' in %s",
     "add": "Thêm",
@@ -48,6 +50,7 @@
     "add-board": "Thêm Bảng",
     "add-card": "Thêm Thẻ",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "Thêm Danh Sách Kiểm Tra",
     "add-checklist-item": "Thêm Một Mục Vào Danh Sách Kiểm Tra",
     "add-cover": "Thêm Bìa",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "Change Password",
     "changePermissionsPopup-title": "Change Permissions",
     "changeSettingsPopup-title": "Change Settings",
+    "subtasks": "Subtasks",
     "checklists": "Checklists",
     "click-to-star": "Click to star this board.",
     "click-to-unstar": "Click to unstar this board.",
@@ -163,7 +167,8 @@
     "comment-only": "Comment only",
     "comment-only-desc": "Can comment on cards only.",
     "computer": "Computer",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "Copy card link to clipboard",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/zh-CN.i18n.json b/i18n/zh-CN.i18n.json
index 3205f107..6ea7ee27 100644
--- a/i18n/zh-CN.i18n.json
+++ b/i18n/zh-CN.i18n.json
@@ -2,6 +2,7 @@
     "accept": "接受",
     "act-activity-notify": "[Wekan] 活动通知",
     "act-addAttachment": "添加附件 __attachment__ 至卡片 __card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "添加清单 __checklist__ 到 __card__",
     "act-addChecklistItem": "向  __card__ 中的清单 __checklist__ 添加 __checklistItem__",
     "act-addComment": "在 __card__ 发布评论: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "从 %s 中移除 %s",
     "activity-sent": "发送 %s 至 %s",
     "activity-unjoined": "已解除 %s 关联",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "已经将清单添加到 %s",
     "activity-checklist-item-added": "添加清单项至'%s' 于 %s",
     "add": "添加",
@@ -48,6 +50,7 @@
     "add-board": "添加看板",
     "add-card": "添加卡片",
     "add-swimlane": "添加泳道图",
+    "add-subtask": "Add Subtask",
     "add-checklist": "添加待办清单",
     "add-checklist-item": "扩充清单",
     "add-cover": "添加封面",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "更改密码",
     "changePermissionsPopup-title": "更改权限",
     "changeSettingsPopup-title": "更改设置",
+    "subtasks": "Subtasks",
     "checklists": "清单",
     "click-to-star": "点此来标记该看板",
     "click-to-unstar": "点此来去除该看板的标记",
@@ -163,7 +167,8 @@
     "comment-only": "仅能评论",
     "comment-only-desc": "只能在卡片上评论。",
     "computer": "从本机上传",
-    "confirm-checklist-delete-dialog": "确认要删除清单吗",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "复制卡片链接到剪贴板",
     "copyCardPopup-title": "复制卡片",
     "copyChecklistToManyCardsPopup-title": "复制清单模板至多个卡片",
@@ -475,5 +480,22 @@
     "board-delete-notice": "删除时永久操作，将会丢失此看板上的所有列表、卡片和动作。",
     "delete-board-confirm-popup": "所有列表、卡片、标签和活动都回被删除，将无法恢复看板内容。不支持撤销。",
     "boardDeletePopup-title": "删除看板？",
-    "delete-board": "删除看板"
+    "delete-board": "删除看板",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file
diff --git a/i18n/zh-TW.i18n.json b/i18n/zh-TW.i18n.json
index 88e9bc18..ced49edd 100644
--- a/i18n/zh-TW.i18n.json
+++ b/i18n/zh-TW.i18n.json
@@ -2,6 +2,7 @@
     "accept": "接受",
     "act-activity-notify": "[Wekan] 活動通知",
     "act-addAttachment": "新增附件__attachment__至__card__",
+    "act-addSubtask": "added subtask __checklist__ to __card__",
     "act-addChecklist": "added checklist __checklist__ to __card__",
     "act-addChecklistItem": "added __checklistItem__ to checklist __checklist__ on __card__",
     "act-addComment": "評論__card__: __comment__",
@@ -41,6 +42,7 @@
     "activity-removed": "移除 %s 從 %s 中",
     "activity-sent": "寄送 %s 至 %s",
     "activity-unjoined": "解除關聯 %s",
+    "activity-subtask-added": "added subtask to %s",
     "activity-checklist-added": "新增待辦清單至 %s",
     "activity-checklist-item-added": "新增待辦清單項目從 %s 到 %s",
     "add": "新增",
@@ -48,6 +50,7 @@
     "add-board": "新增看板",
     "add-card": "新增卡片",
     "add-swimlane": "Add Swimlane",
+    "add-subtask": "Add Subtask",
     "add-checklist": "新增待辦清單",
     "add-checklist-item": "新增項目",
     "add-cover": "新增封面",
@@ -141,6 +144,7 @@
     "changePasswordPopup-title": "更改密碼",
     "changePermissionsPopup-title": "更改許可權",
     "changeSettingsPopup-title": "更改設定",
+    "subtasks": "Subtasks",
     "checklists": "待辦清單",
     "click-to-star": "點此來標記該看板",
     "click-to-unstar": "點此來去除該看板的標記",
@@ -163,7 +167,8 @@
     "comment-only": "只可以發表評論",
     "comment-only-desc": "只可以對卡片發表評論",
     "computer": "從本機上傳",
-    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist",
+    "confirm-subtask-delete-dialog": "Are you sure you want to delete subtask?",
+    "confirm-checklist-delete-dialog": "Are you sure you want to delete checklist?",
     "copy-card-link-to-clipboard": "將卡片連結複製到剪貼板",
     "copyCardPopup-title": "Copy Card",
     "copyChecklistToManyCardsPopup-title": "Copy Checklist Template to Many Cards",
@@ -475,5 +480,22 @@
     "board-delete-notice": "Deleting is permanent. You will lose all lists, cards and actions associated with this board.",
     "delete-board-confirm-popup": "All lists, cards, labels, and activities will be deleted and you won't be able to recover the board contents. There is no undo.",
     "boardDeletePopup-title": "Delete Board?",
-    "delete-board": "Delete Board"
+    "delete-board": "Delete Board",
+    "default-subtasks-board": "Subtasks for __board__ board",
+    "default": "Default",
+    "queue": "Queue",
+    "subtask-settings": "Subtasks Settings",
+    "boardSubtaskSettingsPopup-title": "Board Subtasks Settings",
+    "show-subtasks-field": "Cards can have subtasks",
+    "deposit-subtasks-board": "Deposit subtasks to this board:",
+    "deposit-subtasks-list": "Landing list for subtasks deposited here:",
+    "show-parent-in-minicard": "Show parent in minicard:",
+    "prefix-with-full-path": "Prefix with full path",
+    "prefix-with-parent": "Prefix with parent",
+    "subtext-with-full-path": "Subtext with full path",
+    "subtext-with-parent": "Subtext with parent",
+    "change-card-parent": "Change card's parent",
+    "parent-card": "Parent card",
+    "source-board": "Source board",
+    "no-parent": "Don't show parent"
 }
\ No newline at end of file