1 files changed, 10 insertions, 1 deletions
diff --git a/web/react/utils/constants.jsx b/web/react/utils/constants.jsx
index 122fad348..0180d6dc5 100644
--- a/web/react/utils/constants.jsx
+++ b/web/react/utils/constants.jsx
@@ -49,7 +49,8 @@ export default {
         TOGGLE_IMPORT_THEME_MODAL: null,
         TOGGLE_INVITE_MEMBER_MODAL: null,
         TOGGLE_DELETE_POST_MODAL: null,
-        TOGGLE_GET_TEAM_INVITE_LINK_MODAL: null
+        TOGGLE_GET_TEAM_INVITE_LINK_MODAL: null,
+        TOGGLE_REGISTER_APP_MODAL: null
     }),
 
     PayloadSources: keyMirror({
@@ -137,6 +138,7 @@ export default {
     ],
     MONTHS: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
     MAX_DMS: 20,
+    MAX_CHANNEL_POPOVER_COUNT: 20,
     DM_CHANNEL: 'D',
     OPEN_CHANNEL: 'O',
     PRIVATE_CHANNEL: 'P',
@@ -413,5 +415,12 @@ export default {
     },
     NotificationPrefs: {
         MENTION: 'mention'
+    },
+    FeatureTogglePrefix: 'feature_enabled_',
+    PRE_RELEASE_FEATURES: {
+        MARKDOWN_PREVIEW: {
+            label: 'markdown_preview', // github issue: https://github.com/mattermost/platform/pull/1389
+            description: 'Show markdown preview option in message input box'
+        }
     }
 };