Use asc_setRestriction method for commenting in view mode.

apps/documenteditor/main/app/controller/Main.js

@@ -1014,6 +1014,7 @@ define([
                 this.applyModeEditorElements();
 
                 this.api.asc_setViewMode(!this.appOptions.isEdit && !this.appOptions.canComments);
+                (!this.appOptions.isEdit && this.appOptions.canComments) && this.api.asc_setRestriction(Asc.c_oAscRestrictionType.OnlyComments);
                 this.api.asc_LoadDocument();
 
                 if (!this.appOptions.isEdit) {

apps/presentationeditor/main/app/controller/Main.js

@@ -778,7 +778,7 @@ define([
                 this.applyModeEditorElements();
 
                 this.api.asc_setViewMode(!this.appOptions.isEdit && !this.appOptions.canComments);
-
+                (!this.appOptions.isEdit && this.appOptions.canComments) && this.api.asc_setRestriction(Asc.c_oAscRestrictionType.OnlyComments);
                 this.api.asc_LoadDocument();
 
                 if (!this.appOptions.isEdit) {

apps/spreadsheeteditor/main/app/controller/Main.js

@@ -799,6 +799,7 @@ define([
                 this.applyModeEditorElements();
 
                 this.api.asc_setViewMode(!this.appOptions.isEdit && !this.appOptions.canComments);
+                (!this.appOptions.isEdit && this.appOptions.canComments) && this.api.asc_setRestriction(Asc.c_oAscRestrictionType.OnlyComments);
                 (this.appOptions.isEditMailMerge || this.appOptions.isEditDiagram) ? this.api.asc_LoadEmptyDocument() : this.api.asc_LoadDocument();
 
                 if (!this.appOptions.isEdit) {