diff --git a/apps/documenteditor/main/app/controller/Main.js b/apps/documenteditor/main/app/controller/Main.js
index 80d640c36..e6e1ba9ca 100644
--- a/apps/documenteditor/main/app/controller/Main.js
+++ b/apps/documenteditor/main/app/controller/Main.js
@@ -809,6 +809,9 @@ define([
                                 value == 'none' ? Asc.c_oAscCollaborativeMarksShowType.None : Asc.c_oAscCollaborativeMarksShowType.LastChanges);
                     else
                         me.api.SetCollaborativeMarksShowType(me._state.fastCoauth ? Asc.c_oAscCollaborativeMarksShowType.None : Asc.c_oAscCollaborativeMarksShowType.LastChanges);
+                } else if (!me.appOptions.isEdit && me.appOptions.canComments) {
+                    me._state.fastCoauth = true;
+                    me.api.asc_SetFastCollaborative(me._state.fastCoauth);
                 } else {
                     me._state.fastCoauth = false;
                     me.api.asc_SetFastCollaborative(me._state.fastCoauth);
diff --git a/apps/presentationeditor/main/app/controller/Main.js b/apps/presentationeditor/main/app/controller/Main.js
index b39fe5cdb..ffa16bf9b 100644
--- a/apps/presentationeditor/main/app/controller/Main.js
+++ b/apps/presentationeditor/main/app/controller/Main.js
@@ -588,7 +588,7 @@ define([
                     }
                     me._state.fastCoauth = (value===null || parseInt(value) == 1);
                 } else
-                    me._state.fastCoauth = false;
+                    me._state.fastCoauth = (!me.appOptions.isEdit && me.appOptions.canComments);
                 me.api.asc_SetFastCollaborative(me._state.fastCoauth);
                 /** coauthoring end **/
 
diff --git a/apps/spreadsheeteditor/main/app/controller/Main.js b/apps/spreadsheeteditor/main/app/controller/Main.js
index d2254a453..8f0e183fe 100644
--- a/apps/spreadsheeteditor/main/app/controller/Main.js
+++ b/apps/spreadsheeteditor/main/app/controller/Main.js
@@ -557,7 +557,7 @@ define([
                     }
                     this._state.fastCoauth = (value===null || parseInt(value) == 1);
                 } else
-                    this._state.fastCoauth = false;
+                    this._state.fastCoauth = (!this.appOptions.isEdit && this.appOptions.canComments);
                 this.api.asc_SetFastCollaborative(this._state.fastCoauth);
                 /** coauthoring end **/