diff --git a/apps/common/IrregularStack.js b/apps/common/IrregularStack.js
index 4092f0358..4f5f2ee2d 100644
--- a/apps/common/IrregularStack.js
+++ b/apps/common/IrregularStack.js
@@ -69,7 +69,7 @@ Common.IrregularStack = function(config) {
     }
 
     var _get = function(obj) {
-        var index = _indexOf(obj, _weakCompare);
+        var index = (typeof obj === 'object')? _indexOf(obj, _weakCompare) : obj;
         if (index != -1) 
             return _stack[index];
         return undefined;
@@ -79,10 +79,15 @@ Common.IrregularStack = function(config) {
         return !(_indexOf(obj, _strongCompare) < 0);
     }
 
+    var _length = function() {
+        return _stack.length;
+    }
+
     return {
         push: _push,
         pop: _pop,
         get: _get,
-        exist: _exist
+        exist: _exist,
+        length: _length
     }
 };
\ No newline at end of file
diff --git a/apps/common/main/lib/controller/ReviewChanges.js b/apps/common/main/lib/controller/ReviewChanges.js
index 28b169af6..6b6312256 100644
--- a/apps/common/main/lib/controller/ReviewChanges.js
+++ b/apps/common/main/lib/controller/ReviewChanges.js
@@ -728,25 +728,26 @@ define([
         },
 
         disableEditing: function(disable) {
-            var app = this.getApplication();
-            app.getController('Toolbar').DisableToolbar(disable, false, true);
-            app.getController('DocumentHolder').getView().SetDisabled(disable);
-
-            if (this.appConfig.canReview) {
-                app.getController('RightMenu').getView('RightMenu').clearSelection();
-                app.getController('RightMenu').SetDisabled(disable, false);
-                app.getController('Statusbar').getView('Statusbar').SetDisabled(disable);
-                app.getController('Navigation') && app.getController('Navigation').SetDisabled(disable);
-                app.getController('Common.Controllers.Plugins').getView('Common.Views.Plugins').disableControls(disable);
-            }
-
-            var comments = app.getController('Common.Controllers.Comments');
-            if (comments)
-                comments.setPreviewMode(disable);
-
-            var leftMenu = app.getController('LeftMenu');
-            leftMenu.leftMenu.getMenu('file').getButton('protect').setDisabled(disable);
-            leftMenu.setPreviewMode(disable);
+            Common.NotificationCenter.trigger('editing:disable', disable, {
+                viewMode: false,
+                reviewMode: true,
+                fillFormwMode: false,
+                allowMerge: false,
+                allowSignature: false,
+                allowProtect: false,
+                rightMenu: {clear: true, disable: true},
+                statusBar: true,
+                leftMenu: {disable: false, previewMode: true},
+                fileMenu: {protect: true},
+                navigation: {disable: false, previewMode: true},
+                comments: {disable: false, previewMode: true},
+                chat: false,
+                review: false,
+                viewport: false,
+                documentHolder: true,
+                toolbar: true,
+                plugins: true
+            }, 'review');
 
             if (this.view) {
                 this.view.$el.find('.no-group-mask.review').css('opacity', 1);
diff --git a/apps/documenteditor/main/app/controller/FormsTab.js b/apps/documenteditor/main/app/controller/FormsTab.js
index 43500dbdf..da26708e6 100644
--- a/apps/documenteditor/main/app/controller/FormsTab.js
+++ b/apps/documenteditor/main/app/controller/FormsTab.js
@@ -253,19 +253,26 @@ define([
             if (this._state.DisabledEditing != disable) {
                 this._state.DisabledEditing = disable;
 
-                var app = this.getApplication();
-                var rightMenuController = app.getController('RightMenu');
-                rightMenuController.getView('RightMenu').clearSelection();
-                rightMenuController.SetDisabled(disable);
-                app.getController('Toolbar').DisableToolbar(disable, false, false, true);
-                app.getController('Statusbar').getView('Statusbar').SetDisabled(disable);
-                app.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
-                app.getController('DocumentHolder').getView().SetDisabled(disable);
-                app.getController('Navigation') && app.getController('Navigation').SetDisabled(disable);
-                app.getController('LeftMenu').setPreviewMode(disable);
-                var comments = app.getController('Common.Controllers.Comments');
-                if (comments)
-                    comments.setPreviewMode(disable);
+                Common.NotificationCenter.trigger('editing:disable', disable, {
+                    viewMode: false,
+                    reviewMode: false,
+                    fillFormwMode: true,
+                    allowMerge: false,
+                    allowSignature: false,
+                    allowProtect: false,
+                    rightMenu: {clear: true, disable: true},
+                    statusBar: true,
+                    leftMenu: {disable: false, previewMode: true},
+                    fileMenu: false,
+                    navigation: {disable: false, previewMode: true},
+                    comments: {disable: false, previewMode: true},
+                    chat: false,
+                    review: true,
+                    viewport: false,
+                    documentHolder: true,
+                    toolbar: true,
+                    plugins: false
+                }, 'forms');
                 if (this.view)
                     this.view.$el.find('.no-group-mask.form-view').css('opacity', 1);
             }
diff --git a/apps/documenteditor/main/app/controller/LeftMenu.js b/apps/documenteditor/main/app/controller/LeftMenu.js
index 9251da230..17a145b1a 100644
--- a/apps/documenteditor/main/app/controller/LeftMenu.js
+++ b/apps/documenteditor/main/app/controller/LeftMenu.js
@@ -666,21 +666,29 @@ define([
             this.dlgSearch && this.dlgSearch.setMode(this.viewmode ? 'no-replace' : 'search');
         },
 
-        SetDisabled: function(disable, disableFileMenu) {
-            this.mode.isEdit = !disable;
+        SetDisabled: function(disable, options) {
+            if (this.leftMenu._state.disabled !== disable) {
+                this.leftMenu._state.disabled = disable;
+                if (disable) {
+                    this.previsEdit = this.mode.isEdit;
+                    this.prevcanEdit = this.mode.canEdit;
+                    this.mode.isEdit = this.mode.canEdit = !disable;
+                } else {
+                    this.mode.isEdit = this.previsEdit;
+                    this.mode.canEdit = this.prevcanEdit;
+                }
+            }
+
             if (disable) this.leftMenu.close();
 
-            /** coauthoring begin **/
-            this.leftMenu.btnComments.setDisabled(disable);
-            var comments = this.getApplication().getController('Common.Controllers.Comments');
-            if (comments)
-                comments.setPreviewMode(disable);
-            this.setPreviewMode(disable);
-            this.leftMenu.btnChat.setDisabled(disable);
-            /** coauthoring end **/
+            if (!options || options.comments && options.comments.disable)
+                this.leftMenu.btnComments.setDisabled(disable);
+            if (!options || options.chat)
+                this.leftMenu.btnChat.setDisabled(disable);
+            if (!options || options.navigation && options.navigation.disable)
+                this.leftMenu.btnNavigation.setDisabled(disable);
+
             this.leftMenu.btnPlugins.setDisabled(disable);
-            this.leftMenu.btnNavigation.setDisabled(disable);
-            if (disableFileMenu) this.leftMenu.getMenu('file').SetDisabled(disable);
         },
 
         /** coauthoring begin **/
diff --git a/apps/documenteditor/main/app/controller/Main.js b/apps/documenteditor/main/app/controller/Main.js
index 1a3e619b7..e9e8e4a79 100644
--- a/apps/documenteditor/main/app/controller/Main.js
+++ b/apps/documenteditor/main/app/controller/Main.js
@@ -161,6 +161,11 @@ define([
                     weakCompare     : function(obj1, obj2){return obj1.type === obj2.type;}
                 });
 
+                this.stackDisableActions = new Common.IrregularStack({
+                    strongCompare   : function(obj1, obj2){return obj1.type === obj2.type;},
+                    weakCompare     : function(obj1, obj2){return obj1.type === obj2.type;}
+                });
+
                 this._state = {isDisconnected: false, usersCount: 1, fastCoauth: true, lostEditingRights: false, licenseType: false, isDocModified: false};
                 this.languages = null;
 
@@ -213,7 +218,7 @@ define([
                     Common.NotificationCenter.on('download:advanced',               _.bind(this.onAdvancedOptions, this));
                     Common.NotificationCenter.on('showmessage',                     _.bind(this.onExternalMessage, this));
                     Common.NotificationCenter.on('showerror',                       _.bind(this.onError, this));
-
+                    Common.NotificationCenter.on('editing:disable',                 _.bind(this.onEditingDisable, this));
 
                     this.isShowOpenDialog = false;
                     
@@ -704,18 +709,84 @@ define([
               return"#"+("000000"+color.toString(16)).substr(-6);
             },
 
-
-            disableEditing: function(disable) {
+            disableEditing: function(disable, temp) {
                 var app = this.getApplication();
-                if (this.appOptions.canEdit && this.editorConfig.mode !== 'view') {
-                    app.getController('RightMenu').getView('RightMenu').clearSelection();
-                    app.getController('RightMenu').SetDisabled(disable, false);
+                Common.NotificationCenter.trigger('editing:disable', disable, {
+                    viewMode: disable,
+                    reviewMode: false,
+                    fillFormwMode: false,
+                    allowMerge: false,
+                    allowSignature: false,
+                    allowProtect: false,
+                    rightMenu: {clear: true, disable: true},
+                    statusBar: true,
+                    leftMenu: {disable: true, previewMode: true},
+                    fileMenu: {protect: true, history: temp},
+                    navigation: {disable: !temp, previewMode: true},
+                    comments: {disable: !temp, previewMode: true},
+                    chat: true,
+                    review: true,
+                    viewport: true,
+                    documentHolder: true,
+                    toolbar: true,
+                    plugins: false
+                }, temp ? 'reconnect' : 'disconnect');
+            },
+
+            onEditingDisable: function(disable, options, type) {
+                var app = this.getApplication();
+
+                var action = {type: type, disable: disable, options: options};
+                if (disable && !this.stackDisableActions.get({type: type}))
+                    this.stackDisableActions.push(action);
+                !disable && this.stackDisableActions.pop({type: type});
+                var prev_options = !disable && (this.stackDisableActions.length()>0) ? this.stackDisableActions.get(this.stackDisableActions.length()-1) : null;
+
+                if (options.rightMenu && app.getController('RightMenu')) {
+                    options.rightMenu.clear && app.getController('RightMenu').getView('RightMenu').clearSelection();
+                    options.rightMenu.disable && app.getController('RightMenu').SetDisabled(disable, options.allowMerge, options.allowSignature);
+                }
+                if (options.statusBar) {
                     app.getController('Statusbar').getView('Statusbar').SetDisabled(disable);
                 }
-                app.getController('LeftMenu').SetDisabled(disable, true);
-                app.getController('Toolbar').DisableToolbar(disable, disable);
-                app.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
-                app.getController('Viewport').SetDisabled(disable);
+                if (options.review) {
+                    app.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
+                }
+                if (options.viewport) {
+                    app.getController('Viewport').SetDisabled(disable);
+                }
+                if (options.toolbar) {
+                    app.getController('Toolbar').DisableToolbar(disable, options.viewMode, options.reviewMode, options.fillFormwMode);
+                }
+                if (options.documentHolder) {
+                    app.getController('DocumentHolder').getView().SetDisabled(disable, options.allowProtect);
+                }
+                if (options.leftMenu) {
+                    if (options.leftMenu.disable)
+                        app.getController('LeftMenu').SetDisabled(disable, options);
+                    if (options.leftMenu.previewMode)
+                        app.getController('LeftMenu').setPreviewMode(disable);
+                }
+                if (options.fileMenu) {
+                    app.getController('LeftMenu').leftMenu.getMenu('file').SetDisabled(disable, options.fileMenu);
+                    if (options.leftMenu.disable)
+                        app.getController('LeftMenu').leftMenu.getMenu('file').applyMode();
+                }
+                if (options.comments) {
+                    var comments = this.getApplication().getController('Common.Controllers.Comments');
+                    if (comments && options.comments.previewMode)
+                        comments.setPreviewMode(disable);
+                }
+                if (options.navigation && options.navigation.previewMode) {
+                    app.getController('Navigation') && app.getController('Navigation').SetDisabled(disable);
+                }
+                if (options.plugins) {
+                    app.getController('Common.Controllers.Plugins').getView('Common.Views.Plugins').disableControls(disable);
+                }
+
+                if (prev_options) {
+                    this.onEditingDisable(prev_options.disable, prev_options.options, prev_options.type);
+                }
             },
 
             onRequestClose: function() {
@@ -845,6 +916,10 @@ define([
                     Common.Utils.InternalSettings.get("de-settings-livecomment") ? this.api.asc_showComments(Common.Utils.InternalSettings.get("de-settings-resolvedcomment")) : this.api.asc_hideComments();
                 }
 
+                if ( id == Asc.c_oAscAsyncAction['Disconnect']) {
+                    this.disableEditing(false, true);
+                }
+
                 if ( type == Asc.c_oAscAsyncActionType.BlockInteraction &&
                     (!this.getApplication().getController('LeftMenu').dlgSearch || !this.getApplication().getController('LeftMenu').dlgSearch.isVisible()) &&
                     (!this.getApplication().getController('Toolbar').dlgSymbolTable || !this.getApplication().getController('Toolbar').dlgSymbolTable.isVisible()) &&
@@ -945,6 +1020,12 @@ define([
                         title   = this.loadingDocumentTitleText + '           ';
                         text    = this.loadingDocumentTextText;
                         break;
+
+                    case Asc.c_oAscAsyncAction['Disconnect']:
+                        text    = this.textDisconnect;
+                        this.disableEditing(true, true);
+                        break;
+
                     default:
                         if (typeof action.id == 'string'){
                             title   = action.id;
@@ -2425,17 +2506,7 @@ define([
             warningDocumentIsLocked: function() {
                 var me = this;
                 var _disable_ui = function (disable) {
-                    me.disableEditing(disable);
-                    var app = me.getApplication();
-                    app.getController('DocumentHolder').getView().SetDisabled(disable);
-                    app.getController('Navigation') && app.getController('Navigation').SetDisabled(disable);
-
-                    var leftMenu = app.getController('LeftMenu');
-                    leftMenu.leftMenu.getMenu('file').getButton('protect').setDisabled(disable);
-                    leftMenu.setPreviewMode(disable);
-
-                    var comments = app.getController('Common.Controllers.Comments');
-                    if (comments) comments.setPreviewMode(disable);
+                    me.disableEditing(disable, true);
                 };
 
                 Common.Utils.warningDocumentIsLocked({disablefunc: _disable_ui});
@@ -2922,7 +2993,8 @@ define([
             txtNoTableOfFigures: "No table of figures entries found.",
             txtTableOfFigures: 'Table of figures',
             txtStyle_endnote_text: 'Endnote Text',
-            txtTOCHeading: 'TOC Heading'
+            txtTOCHeading: 'TOC Heading',
+            textDisconnect: 'Connection is lost'
         }
     })(), DE.Controllers.Main || {}))
 });
\ No newline at end of file
diff --git a/apps/documenteditor/main/app/view/FileMenu.js b/apps/documenteditor/main/app/view/FileMenu.js
index ffdd1b0fa..6d970f307 100644
--- a/apps/documenteditor/main/app/view/FileMenu.js
+++ b/apps/documenteditor/main/app/view/FileMenu.js
@@ -182,6 +182,10 @@ define([
                 caption : this.btnHistoryCaption,
                 canFocused: false
             });
+            if ( !!this.options.miHistory ) {
+                this.miHistory.setDisabled(this.options.miHistory.isDisabled());
+                delete this.options.miHistory;
+            }
 
             this.miHelp = new Common.UI.MenuItem({
                 el      : $markup.elementById('#fm-btn-help'),
@@ -271,6 +275,8 @@ define([
         },
 
         applyMode: function() {
+            if (!this.rendered) return;
+
             if (!this.panels) {
                 this.panels = {
                     'opts'      : (new DE.Views.FileMenuPanels.Settings({menu:this})).render(this.$el.find('#panel-settings')),
@@ -363,8 +369,7 @@ define([
             }
 
             if (!delay) {
-                if ( this.rendered )
-                    this.applyMode();
+                this.applyMode();
             }
             return this;
         },
@@ -411,14 +416,12 @@ define([
             });
         },
 
-        SetDisabled: function(disable) {
-            var _btn_save = this.getButton('save'),
-                _btn_rename = this.getButton('rename'),
-                _btn_protect = this.getButton('protect');
+        SetDisabled: function(disable, options) {
+            var _btn_protect = this.getButton('protect'),
+                _btn_history = this.getButton('history');
 
-            _btn_save[(disable || !this.mode.isEdit)?'hide':'show']();
-            _btn_protect[(disable || !this.mode.isEdit)?'hide':'show']();
-            _btn_rename[(disable || !this.mode.canRename || this.mode.isDesktopApp) ?'hide':'show']();
+            options && options.protect && _btn_protect.setDisabled(disable);
+            options && options.history && _btn_history.setDisabled(disable);
         },
 
         isVisible: function () {
@@ -435,6 +438,9 @@ define([
                 } else
                 if (type == 'protect') {
                     return this.options.miProtect ? this.options.miProtect : (this.options.miProtect = new Common.UI.MenuItem({}));
+                } else
+                if (type == 'history') {
+                    return this.options.miHistory ? this.options.miHistory : (this.options.miHistory = new Common.UI.MenuItem({}));
                 }
             } else {
                 if (type == 'save') {
@@ -445,6 +451,9 @@ define([
                 }else
                 if (type == 'protect') {
                     return this.miProtect;
+                }else
+                if (type == 'history') {
+                    return this.miHistory;
                 }
             }
         },
diff --git a/apps/documenteditor/main/app/view/LeftMenu.js b/apps/documenteditor/main/app/view/LeftMenu.js
index 5fa9eb4dc..a98cb6ba1 100644
--- a/apps/documenteditor/main/app/view/LeftMenu.js
+++ b/apps/documenteditor/main/app/view/LeftMenu.js
@@ -86,7 +86,7 @@ define([
 
         initialize: function () {
             this.minimizedMode = true;
-            this._state = {};
+            this._state = {disabled: false};
         },
 
         render: function () {
diff --git a/apps/documenteditor/main/app/view/MailMergeSettings.js b/apps/documenteditor/main/app/view/MailMergeSettings.js
index 34ece804c..7ccc75536 100644
--- a/apps/documenteditor/main/app/view/MailMergeSettings.js
+++ b/apps/documenteditor/main/app/view/MailMergeSettings.js
@@ -799,18 +799,26 @@ define([
         },
 
         disableEditing: function(disable) {
-            DE.getController('Toolbar').DisableToolbar(disable, disable);
-            DE.getController('RightMenu').SetDisabled(disable, true);
-            DE.getController('Statusbar').getView('Statusbar').SetDisabled(disable);
-            DE.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
-            DE.getController('DocumentHolder').getView().SetDisabled(disable);
-            DE.getController('Navigation') && DE.getController('Navigation').SetDisabled(disable);
-
-            var comments = DE.getController('Common.Controllers.Comments');
-            if (comments)
-                comments.setPreviewMode(disable);
-
-            DE.getController('LeftMenu').setPreviewMode(disable);
+            Common.NotificationCenter.trigger('editing:disable', disable, {
+                viewMode: disable,
+                reviewMode: false,
+                fillFormwMode: false,
+                allowMerge: true,
+                allowSignature: false,
+                allowProtect: false,
+                rightMenu: {clear: false, disable: true},
+                statusBar: true,
+                leftMenu: {disable: false, previewMode: true},
+                fileMenu: false,
+                navigation: {disable: false, previewMode: true},
+                comments: {disable: false, previewMode: true},
+                chat: false,
+                review: true,
+                viewport: false,
+                documentHolder: true,
+                toolbar: true,
+                plugins: false
+            }, 'mailmerge');
 
             this.lockControls(DE.enumLockMM.preview, disable, {array: [this.btnInsField, this.btnEditData]});
         },
diff --git a/apps/documenteditor/main/app/view/SignatureSettings.js b/apps/documenteditor/main/app/view/SignatureSettings.js
index 2d4d15d9a..c489c8e13 100644
--- a/apps/documenteditor/main/app/view/SignatureSettings.js
+++ b/apps/documenteditor/main/app/view/SignatureSettings.js
@@ -393,22 +393,26 @@ define([
             if (this._state.DisabledEditing != disable) {
                 this._state.DisabledEditing = disable;
 
-                var rightMenuController = DE.getController('RightMenu');
-                if (disable && rightMenuController.rightmenu.GetActivePane() !== 'id-signature-settings')
-                    rightMenuController.rightmenu.clearSelection();
-                rightMenuController.SetDisabled(disable, false, true);
-                DE.getController('Toolbar').DisableToolbar(disable, disable);
-                DE.getController('Statusbar').getView('Statusbar').SetDisabled(disable);
-                DE.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
-                DE.getController('DocumentHolder').getView().SetDisabled(disable, true);
-                DE.getController('Navigation') && DE.getController('Navigation').SetDisabled(disable);
-
-                // var leftMenu = DE.getController('LeftMenu').leftMenu;
-                // leftMenu.btnComments.setDisabled(disable);
-                DE.getController('LeftMenu').setPreviewMode(disable);
-                var comments = DE.getController('Common.Controllers.Comments');
-                if (comments)
-                    comments.setPreviewMode(disable);
+                Common.NotificationCenter.trigger('editing:disable', disable, {
+                    viewMode: disable,
+                    reviewMode: false,
+                    fillFormwMode: false,
+                    allowMerge: false,
+                    allowSignature: true,
+                    allowProtect: true,
+                    rightMenu: {clear: disable && (DE.getController('RightMenu').rightmenu.GetActivePane() !== 'id-signature-settings'), disable: true},
+                    statusBar: true,
+                    leftMenu: {disable: false, previewMode: true},
+                    fileMenu: false,
+                    navigation: {disable: false, previewMode: true},
+                    comments: {disable: false, previewMode: true},
+                    chat: false,
+                    review: true,
+                    viewport: false,
+                    documentHolder: true,
+                    toolbar: true,
+                    plugins: false
+                }, 'signature');
             }
         },
 
diff --git a/apps/presentationeditor/main/app/controller/LeftMenu.js b/apps/presentationeditor/main/app/controller/LeftMenu.js
index 26565ba84..7c26f8888 100644
--- a/apps/presentationeditor/main/app/controller/LeftMenu.js
+++ b/apps/presentationeditor/main/app/controller/LeftMenu.js
@@ -768,21 +768,28 @@ define([
             Common.Gateway.requestHistory();
         },
 
-        SetDisabled: function(disable, disableFileMenu) {
-            this.mode.isEdit = !disable;
+        SetDisabled: function(disable, options) {
+            if (this.leftMenu._state.disabled !== disable) {
+                this.leftMenu._state.disabled = disable;
+                if (disable) {
+                    this.previsEdit = this.mode.isEdit;
+                    this.prevcanEdit = this.mode.canEdit;
+                    this.mode.isEdit = this.mode.canEdit = !disable;
+                } else {
+                    this.mode.isEdit = this.previsEdit;
+                    this.mode.canEdit = this.prevcanEdit;
+                }
+            }
+
             if (disable) this.leftMenu.close();
 
-            /** coauthoring begin **/
-            this.leftMenu.btnComments.setDisabled(disable);
-            var comments = this.getApplication().getController('Common.Controllers.Comments');
-            if (comments)
-                comments.setPreviewMode(disable);
-            this.setPreviewMode(disable);
-            this.leftMenu.btnChat.setDisabled(disable);
-            /** coauthoring end **/
+            if (!options || options.comments && options.comments.disable)
+                this.leftMenu.btnComments.setDisabled(disable);
+            if (!options || options.chat)
+                this.leftMenu.btnChat.setDisabled(disable);
+
             this.leftMenu.btnPlugins.setDisabled(disable);
             this.leftMenu.btnThumbs.setDisabled(disable);
-            if (disableFileMenu) this.leftMenu.getMenu('file').SetDisabled(disable);
         },
 
         textNoTextFound         : 'Text not found',
diff --git a/apps/presentationeditor/main/app/controller/Main.js b/apps/presentationeditor/main/app/controller/Main.js
index 2cbff6ff1..5b6918ad0 100644
--- a/apps/presentationeditor/main/app/controller/Main.js
+++ b/apps/presentationeditor/main/app/controller/Main.js
@@ -145,7 +145,10 @@ define([
                     strongCompare   : function(obj1, obj2){return obj1.id === obj2.id && obj1.type === obj2.type;},
                     weakCompare     : function(obj1, obj2){return obj1.type === obj2.type;}
                 });
-
+                this.stackDisableActions = new Common.IrregularStack({
+                    strongCompare   : function(obj1, obj2){return obj1.type === obj2.type;},
+                    weakCompare     : function(obj1, obj2){return obj1.type === obj2.type;}
+                });
                 // Initialize viewport
 
                 if (!Common.Utils.isBrowserSupported()){
@@ -190,6 +193,7 @@ define([
                     Common.NotificationCenter.on('showmessage',                     _.bind(this.onExternalMessage, this));
                     Common.NotificationCenter.on('showerror',                       _.bind(this.onError, this));
                     Common.NotificationCenter.on('markfavorite',                    _.bind(this.markFavorite, this));
+                    Common.NotificationCenter.on('editing:disable',                 _.bind(this.onEditingDisable, this));
 
                     this.isShowOpenDialog = false;
 
@@ -604,7 +608,11 @@ define([
                 if (this.appOptions.isEdit && (id==Asc.c_oAscAsyncAction['Save'] || id==Asc.c_oAscAsyncAction['ForceSaveButton']) && (!this._state.fastCoauth || this._state.usersCount<2))
                     this.synchronizeChanges();
 
-               if (type == Asc.c_oAscAsyncActionType.BlockInteraction && !((id == Asc.c_oAscAsyncAction['LoadDocumentFonts'] || id == Asc.c_oAscAsyncAction['ApplyChanges']) && (this.dontCloseDummyComment || this.inTextareaControl || Common.Utils.ModalWindow.isVisible() || this.inFormControl))) {
+                if ( id == Asc.c_oAscAsyncAction['Disconnect']) {
+                    this.disableEditing(false, true);
+                }
+
+                if (type == Asc.c_oAscAsyncActionType.BlockInteraction && !((id == Asc.c_oAscAsyncAction['LoadDocumentFonts'] || id == Asc.c_oAscAsyncAction['ApplyChanges']) && (this.dontCloseDummyComment || this.inTextareaControl || Common.Utils.ModalWindow.isVisible() || this.inFormControl))) {
                     this.onEditComplete(this.loadMask);
                     this.api.asc_enableKeyEvents(true);
                 }
@@ -694,6 +702,12 @@ define([
                         title   = this.loadingDocumentTitleText + '           ';
                         text    = this.loadingDocumentTextText;
                         break;
+
+                    case Asc.c_oAscAsyncAction['Disconnect']:
+                        text    = this.textDisconnect;
+                        this.disableEditing(true, true);
+                        break;
+
                     default:
                         if (typeof action.id == 'string'){
                             title   = action.id;
@@ -965,17 +979,71 @@ define([
                 }
             },
 
-            disableEditing: function(disable) {
+            disableEditing: function(disable, temp) {
+                Common.NotificationCenter.trigger('editing:disable', disable, {
+                    viewMode: disable,
+                    allowSignature: false,
+                    rightMenu: {clear: true, disable: true},
+                    statusBar: true,
+                    leftMenu: {disable: true, previewMode: true},
+                    fileMenu: {protect: true, history: temp},
+                    comments: {disable: !temp, previewMode: true},
+                    chat: true,
+                    review: true,
+                    viewport: true,
+                    documentHolder: true,
+                    toolbar: true
+                }, temp ? 'reconnect' : 'disconnect');
+            },
+
+            onEditingDisable: function(disable, options, type) {
                 var app = this.getApplication();
-                if (this.appOptions.canEdit && this.editorConfig.mode !== 'view') {
-                    app.getController('RightMenu').getView('RightMenu').clearSelection();
-                    app.getController('RightMenu').SetDisabled(disable, false);
+
+                var action = {type: type, disable: disable, options: options};
+                if (disable && !this.stackDisableActions.get({type: type}))
+                    this.stackDisableActions.push(action);
+                !disable && this.stackDisableActions.pop({type: type});
+                var prev_options = !disable && (this.stackDisableActions.length()>0) ? this.stackDisableActions.get(this.stackDisableActions.length()-1) : null;
+
+                if (options.rightMenu && app.getController('RightMenu')) {
+                    options.rightMenu.clear && app.getController('RightMenu').getView('RightMenu').clearSelection();
+                    options.rightMenu.disable && app.getController('RightMenu').SetDisabled(disable, options.allowSignature);
+                }
+                if (options.statusBar) {
                     app.getController('Statusbar').getView('Statusbar').SetDisabled(disable);
                 }
-                app.getController('LeftMenu').SetDisabled(disable, true);
-                app.getController('Toolbar').DisableToolbar(disable);
-                app.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
-                app.getController('Viewport').SetDisabled(disable);
+                if (options.review) {
+                    app.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
+                }
+                if (options.viewport) {
+                    app.getController('Viewport').SetDisabled(disable);
+                }
+                if (options.toolbar) {
+                    app.getController('Toolbar').DisableToolbar(disable, options.viewMode);
+                }
+                if (options.documentHolder) {
+                    app.getController('DocumentHolder').getView('DocumentHolder').SetDisabled(disable);
+                }
+                if (options.leftMenu) {
+                    if (options.leftMenu.disable)
+                        app.getController('LeftMenu').SetDisabled(disable, options);
+                    if (options.leftMenu.previewMode)
+                        app.getController('LeftMenu').setPreviewMode(disable);
+                }
+                if (options.fileMenu) {
+                    app.getController('LeftMenu').leftMenu.getMenu('file').SetDisabled(disable, options.fileMenu);
+                    if (options.leftMenu.disable)
+                        app.getController('LeftMenu').leftMenu.getMenu('file').applyMode();
+                }
+                if (options.comments) {
+                    var comments = this.getApplication().getController('Common.Controllers.Comments');
+                    if (comments && options.comments.previewMode)
+                        comments.setPreviewMode(disable);
+                }
+
+                if (prev_options) {
+                    this.onEditingDisable(prev_options.disable, prev_options.options, prev_options.type);
+                }
             },
 
             onOpenDocument: function(progress) {
@@ -2072,16 +2140,7 @@ define([
                 var me = this;
                 Common.Utils.warningDocumentIsLocked({
                     disablefunc: function (disable) {
-                        var app = me.getApplication();
-                        me.disableEditing(disable);
-                        app.getController('RightMenu').SetDisabled(disable, true);
-                        app.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
-                        app.getController('DocumentHolder').getView('DocumentHolder').SetDisabled(disable);
-                        var leftMenu = app.getController('LeftMenu');
-                        leftMenu.leftMenu.getMenu('file').getButton('protect').setDisabled(disable);
-                        leftMenu.setPreviewMode(disable);
-                        var comments = app.getController('Common.Controllers.Comments');
-                        if (comments) comments.setPreviewMode(disable);
+                        me.disableEditing(disable, true);
                     }});
             },
 
@@ -2712,7 +2771,8 @@ define([
             txtErrorLoadHistory: 'Loading history failed',
             leavePageTextOnClose: 'All unsaved changes in this document will be lost.<br> Click \'Cancel\' then \'Save\' to save them. Click \'OK\' to discard all the unsaved changes.',
             textTryUndoRedoWarn: 'The Undo/Redo functions are disabled for the Fast co-editing mode.',
-            txtNone: 'None'
+            txtNone: 'None',
+            textDisconnect: 'Connection is lost'
         }
     })(), PE.Controllers.Main || {}))
 });
diff --git a/apps/presentationeditor/main/app/view/FileMenu.js b/apps/presentationeditor/main/app/view/FileMenu.js
index ba9e00248..58bfee2f0 100644
--- a/apps/presentationeditor/main/app/view/FileMenu.js
+++ b/apps/presentationeditor/main/app/view/FileMenu.js
@@ -140,6 +140,10 @@ define([
                 caption : this.btnRenameCaption,
                 canFocused: false
             });
+            if ( !!this.options.miRename ) {
+                this.miRename.setDisabled(this.options.miRename.isDisabled());
+                delete this.options.miRename;
+            }
 
             this.miProtect = new Common.UI.MenuItem({
                 el      : $markup.elementById('#fm-btn-protect'),
@@ -186,6 +190,10 @@ define([
                 caption : this.btnHistoryCaption,
                 canFocused: false
             });
+            if ( !!this.options.miHistory ) {
+                this.miHistory.setDisabled(this.options.miHistory.isDisabled());
+                delete this.options.miHistory;
+            }
 
             this.items = [];
             this.items.push(
@@ -267,6 +275,8 @@ define([
         },
 
         applyMode: function() {
+            if (!this.rendered) return;
+            
             if (!this.panels) {
                 this.panels = {
                     'opts'      : (new PE.Views.FileMenuPanels.Settings({menu:this})).render(this.$el.find('#panel-settings')),
@@ -357,8 +367,7 @@ define([
             }
 
             if (!delay) {
-                if ( this.rendered )
-                    this.applyMode();
+                this.applyMode();
             }
         },
 
@@ -433,6 +442,9 @@ define([
                 } else
                 if (type == 'protect') {
                     return this.options.miProtect ? this.options.miProtect : (this.options.miProtect = new Common.UI.MenuItem({}));
+                } else
+                if (type == 'history') {
+                    return this.options.miHistory ? this.options.miHistory : (this.options.miHistory = new Common.UI.MenuItem({}));
                 }
             } else {
                 if (type == 'save') {
@@ -443,18 +455,19 @@ define([
                 } else
                 if (type == 'protect') {
                     return this.miProtect;
+                }else
+                if (type == 'history') {
+                    return this.miHistory;
                 }
             }
         },
 
-        SetDisabled: function(disable) {
-            var _btn_save = this.getButton('save'),
-                _btn_rename = this.getButton('rename'),
-                _btn_protect = this.getButton('protect');
+        SetDisabled: function(disable, options) {
+            var _btn_protect = this.getButton('protect'),
+                _btn_history = this.getButton('history');
 
-            _btn_save[(disable || !this.mode.isEdit)?'hide':'show']();
-            _btn_protect[(disable || !this.mode.isEdit)?'hide':'show']();
-            _btn_rename[(disable || !this.mode.canRename || this.mode.isDesktopApp) ?'hide':'show']();
+            options && options.protect && _btn_protect.setDisabled(disable);
+            options && options.history && _btn_history.setDisabled(disable);
         },
 
         btnSaveCaption          : 'Save',
diff --git a/apps/presentationeditor/main/app/view/LeftMenu.js b/apps/presentationeditor/main/app/view/LeftMenu.js
index 644161978..c39fa0106 100644
--- a/apps/presentationeditor/main/app/view/LeftMenu.js
+++ b/apps/presentationeditor/main/app/view/LeftMenu.js
@@ -83,7 +83,7 @@ define([
 
         initialize: function () {
             this.minimizedMode = true;
-            this._state = {};
+            this._state = {disabled: false};
         },
 
         render: function () {
diff --git a/apps/presentationeditor/main/app/view/SignatureSettings.js b/apps/presentationeditor/main/app/view/SignatureSettings.js
index c9cf04be8..c92af3468 100644
--- a/apps/presentationeditor/main/app/view/SignatureSettings.js
+++ b/apps/presentationeditor/main/app/view/SignatureSettings.js
@@ -347,21 +347,20 @@ define([
             if (this._state.DisabledEditing != disable) {
                 this._state.DisabledEditing = disable;
 
-                var rightMenuController = PE.getController('RightMenu');
-                if (disable && rightMenuController.rightmenu.GetActivePane() !== 'id-signature-settings')
-                    rightMenuController.rightmenu.clearSelection();
-                rightMenuController.SetDisabled(disable, true);
-                PE.getController('Toolbar').DisableToolbar(disable, disable);
-                PE.getController('Statusbar').getView('Statusbar').SetDisabled(disable);
-                PE.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
-                PE.getController('DocumentHolder').getView('DocumentHolder').SetDisabled(disable);
-
-                // var leftMenu = PE.getController('LeftMenu').leftMenu;
-                // leftMenu.btnComments.setDisabled(disable);
-                PE.getController('LeftMenu').setPreviewMode(disable);
-                var comments = PE.getController('Common.Controllers.Comments');
-                if (comments)
-                    comments.setPreviewMode(disable);
+                Common.NotificationCenter.trigger('editing:disable', disable, {
+                    viewMode: disable,
+                    allowSignature: true,
+                    rightMenu: {clear: disable && (PE.getController('RightMenu').rightmenu.GetActivePane() !== 'id-signature-settings'), disable: true},
+                    statusBar: true,
+                    leftMenu: {disable: false, previewMode: true},
+                    fileMenu: false,
+                    comments: {disable: false, previewMode: true},
+                    chat: false,
+                    review: true,
+                    viewport: false,
+                    documentHolder: true,
+                    toolbar: true
+                }, 'signature');
             }
         },
 
diff --git a/apps/presentationeditor/main/app/view/Statusbar.js b/apps/presentationeditor/main/app/view/Statusbar.js
index 676d3f347..af8b61e5e 100644
--- a/apps/presentationeditor/main/app/view/Statusbar.js
+++ b/apps/presentationeditor/main/app/view/Statusbar.js
@@ -365,7 +365,6 @@ define([
             SetDisabled: function(disable) {
                 var langs = this.langMenu.items.length>0;
                 this.btnLanguage.setDisabled(disable || !langs || this._state.no_paragraph);
-                this.mode.isEdit = !disable;
             },
 
             onApiFocusObject: function(selectedObjects) {
diff --git a/apps/spreadsheeteditor/main/app/controller/CellEditor.js b/apps/spreadsheeteditor/main/app/controller/CellEditor.js
index 8a9beecf1..f6f88365f 100644
--- a/apps/spreadsheeteditor/main/app/controller/CellEditor.js
+++ b/apps/spreadsheeteditor/main/app/controller/CellEditor.js
@@ -323,16 +323,16 @@ define([
             this.namedrange_locked = (state == Asc.c_oAscDefinedNameReason.LockDefNameManager);
         },
 
-        disableEditing: function(disabled) {
-            this.editor.$btnfunc[!disabled?'removeClass':'addClass']('disabled');
-            this.editor.btnNamedRanges.setVisible(!disabled);
+        SetDisabled: function(disabled) {
+            this.editor.$btnfunc[!disabled && this.mode.isEdit ?'removeClass':'addClass']('disabled');
+            this.editor.btnNamedRanges.setVisible(!disabled && this.mode.isEdit && !this.mode.isEditDiagram && !this.mode.isEditMailMerge);
         },
 
         setPreviewMode: function(mode) {
             if (this.viewmode === mode) return;
             this.viewmode = mode;
-            this.editor.$btnfunc[!mode?'removeClass':'addClass']('disabled');
-            this.editor.cellNameDisabled(mode);
+            this.editor.$btnfunc[!mode && this.mode.isEdit?'removeClass':'addClass']('disabled');
+            this.editor.cellNameDisabled(mode && !(this.mode.isEdit && !this.mode.isEditDiagram && !this.mode.isEditMailMerge));
         }
     });
 });
\ No newline at end of file
diff --git a/apps/spreadsheeteditor/main/app/controller/LeftMenu.js b/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
index e60895ed3..3a89c1a73 100644
--- a/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
+++ b/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
@@ -188,13 +188,28 @@ define([
             return this;
         },
 
-        disableEditing: function(disabled) {
-            this.leftMenu.btnComments.setDisabled(disabled);
-            this.leftMenu.btnChat.setDisabled(disabled);
-            this.leftMenu.btnPlugins.setDisabled(disabled);
-            this.leftMenu.btnSpellcheck.setDisabled(disabled);
+        SetDisabled: function(disable, options) {
+            if (this.leftMenu._state.disabled !== disable) {
+                this.leftMenu._state.disabled = disable;
+                if (disable) {
+                    this.previsEdit = this.mode.isEdit;
+                    this.prevcanEdit = this.mode.canEdit;
+                    this.mode.isEdit = this.mode.canEdit = !disable;
+                } else {
+                    this.mode.isEdit = this.previsEdit;
+                    this.mode.canEdit = this.prevcanEdit;
+                }
+            }
 
-            this.leftMenu.getMenu('file').disableEditing(disabled);
+            if (disable) this.leftMenu.close();
+
+            if (!options || options.comments && options.comments.disable)
+                this.leftMenu.btnComments.setDisabled(disable);
+            if (!options || options.chat)
+                this.leftMenu.btnChat.setDisabled(disable);
+
+            this.leftMenu.btnPlugins.setDisabled(disable);
+            this.leftMenu.btnSpellcheck.setDisabled(disable);
         },
 
         createDelayedElements: function() {
diff --git a/apps/spreadsheeteditor/main/app/controller/Main.js b/apps/spreadsheeteditor/main/app/controller/Main.js
index 6ee4976a2..c5952c7b8 100644
--- a/apps/spreadsheeteditor/main/app/controller/Main.js
+++ b/apps/spreadsheeteditor/main/app/controller/Main.js
@@ -209,7 +209,8 @@ define([
                 Common.NotificationCenter.on('download:cancel',              _.bind(this.onDownloadCancel, this));
                 Common.NotificationCenter.on('download:advanced',            _.bind(this.onAdvancedOptions, this));
                 Common.NotificationCenter.on('showmessage',                  _.bind(this.onExternalMessage, this));
-                Common.NotificationCenter.on('markfavorite',                    _.bind(this.markFavorite, this));
+                Common.NotificationCenter.on('markfavorite',                 _.bind(this.markFavorite, this));
+                Common.NotificationCenter.on('editing:disable',              _.bind(this.onEditingDisable, this));
 
                 this.stackLongActions = new Common.IrregularStack({
                     strongCompare   : this._compareActionStrong,
@@ -218,6 +219,11 @@ define([
 
                 this.stackLongActions.push({id: InitApplication, type: Asc.c_oAscAsyncActionType.BlockInteraction});
 
+                this.stackDisableActions = new Common.IrregularStack({
+                    strongCompare   : this._compareActionWeak,
+                    weakCompare     : this._compareActionWeak
+                });
+
                 this.isShowOpenDialog = false;
 
                 // Initialize api gateway
@@ -670,6 +676,9 @@ define([
                     if (type == Asc.c_oAscAsyncActionType.BlockInteraction && !( (id == Asc.c_oAscAsyncAction['LoadDocumentFonts'] || id == Asc.c_oAscAsyncAction['ApplyChanges']) && (this.dontCloseDummyComment || this.inTextareaControl || Common.Utils.ModalWindow.isVisible() || this.inFormControl) ))
                         this.onEditComplete(this.loadMask, {restorefocus:true});
                 }
+                if ( id == Asc.c_oAscAsyncAction['Disconnect']) {
+                    this.disableEditing(false, true);
+                }
             },
 
             setLongActionView: function(action) {
@@ -741,6 +750,12 @@ define([
                     case LoadingDocument:
                         title   = this.loadingDocumentTitleText + '           ';
                         break;
+
+                    case Asc.c_oAscAsyncAction['Disconnect']:
+                        title    = this.textDisconnect;
+                        this.disableEditing(true, true);
+                        break;
+
                     default:
                         if (typeof action.id == 'string'){
                             title   = action.id;
@@ -1032,11 +1047,75 @@ define([
                 }
             },
 
-            disableEditing: function(disable) {
+            disableEditing: function(disable, temp) {
+                Common.NotificationCenter.trigger('editing:disable', disable, {
+                    viewMode: disable,
+                    allowSignature: false,
+                    allowProtect: false,
+                    rightMenu: {clear: true, disable: true},
+                    statusBar: true,
+                    leftMenu: {disable: true, previewMode: true},
+                    fileMenu: {protect: true, history: temp},
+                    comments: {disable: !temp, previewMode: true},
+                    chat: true,
+                    review: true,
+                    viewport: true,
+                    documentHolder: true,
+                    toolbar: true,
+                    celleditor: {previewMode: true}
+                }, temp ? 'reconnect' : 'disconnect');
+            },
+
+            onEditingDisable: function(disable, options, type) {
                 var app = this.getApplication();
-                if (this.appOptions.canEdit && this.editorConfig.mode !== 'view') {
-                    app.getController('RightMenu').getView('RightMenu').clearSelection();
-                    app.getController('Toolbar').DisableToolbar(disable);
+
+                var action = {type: type, disable: disable, options: options};
+                if (disable && !this.stackDisableActions.get({type: type}))
+                    this.stackDisableActions.push(action);
+                !disable && this.stackDisableActions.pop({type: type});
+                var prev_options = !disable && (this.stackDisableActions.length()>0) ? this.stackDisableActions.get(this.stackDisableActions.length()-1) : null;
+
+                if (options.rightMenu && app.getController('RightMenu')) {
+                    options.rightMenu.clear && app.getController('RightMenu').getView('RightMenu').clearSelection();
+                    options.rightMenu.disable && app.getController('RightMenu').SetDisabled(disable, options.allowSignature);
+                }
+                if (options.statusBar) {
+                    app.getController('Statusbar').SetDisabled(disable);
+                }
+                if (options.review) {
+                    app.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
+                }
+                if (options.viewport) {
+                    app.getController('Viewport').SetDisabled(disable);
+                }
+                if (options.toolbar) {
+                    app.getController('Toolbar').DisableToolbar(disable, options.viewMode);
+                }
+                if (options.documentHolder) {
+                    app.getController('DocumentHolder').SetDisabled(disable, options.allowProtect);
+                }
+                if (options.leftMenu) {
+                    if (options.leftMenu.disable)
+                        app.getController('LeftMenu').SetDisabled(disable, options);
+                    if (options.leftMenu.previewMode)
+                        app.getController('LeftMenu').setPreviewMode(disable);
+                }
+                if (options.fileMenu) {
+                    app.getController('LeftMenu').leftMenu.getMenu('file').SetDisabled(disable, options.fileMenu);
+                    if (options.leftMenu.disable)
+                        app.getController('LeftMenu').leftMenu.getMenu('file').applyMode();
+                }
+                if (options.comments) {
+                    var comments = this.getApplication().getController('Common.Controllers.Comments');
+                    if (comments && options.comments.previewMode)
+                        comments.setPreviewMode(disable);
+                }
+                if (options.celleditor && options.celleditor.previewMode) {
+                    app.getController('CellEditor').setPreviewMode(disable);
+                }
+
+                if (prev_options) {
+                    this.onEditingDisable(prev_options.disable, prev_options.options, prev_options.type);
                 }
             },
 
@@ -2437,20 +2516,7 @@ define([
                 var me = this;
                 Common.Utils.warningDocumentIsLocked({
                     disablefunc: function (disable) {
-                        me.disableEditing(disable);
-                        var app = me.getApplication();
-                        app.getController('Toolbar').DisableToolbar(disable,disable);
-                        app.getController('RightMenu').SetDisabled(disable, true);
-                        app.getController('Statusbar').SetDisabled(disable);
-                        app.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
-                        app.getController('DocumentHolder').SetDisabled(disable);
-                        var leftMenu = app.getController('LeftMenu');
-                        leftMenu.setPreviewMode(disable);
-                        leftMenu.disableEditing(disable);
-                        app.getController('CellEditor').disableEditing(disable);
-                        app.getController('Viewport').disableEditing(disable);
-                        var comments = app.getController('Common.Controllers.Comments');
-                        if (comments) comments.setPreviewMode(disable);
+                        me.disableEditing(disable, true);
                 }});
             },
 
@@ -2952,7 +3018,8 @@ define([
             errorPivotWithoutUnderlying: 'The Pivot Table report was saved without the underlying data.<br>Use the \'Refresh\' button to update the report.',
             txtQuarter: 'Qtr',
             txtOr: '%1 or %2',
-            confirmReplaceFormulaInTable: 'Formulas in the header row will be removed and converted to static text.<br>Do you want to continue?'
+            confirmReplaceFormulaInTable: 'Formulas in the header row will be removed and converted to static text.<br>Do you want to continue?',
+            textDisconnect: 'Connection is lost'
         }
     })(), SSE.Controllers.Main || {}))
 });
diff --git a/apps/spreadsheeteditor/main/app/controller/Viewport.js b/apps/spreadsheeteditor/main/app/controller/Viewport.js
index a42d3771b..525c719ab 100644
--- a/apps/spreadsheeteditor/main/app/controller/Viewport.js
+++ b/apps/spreadsheeteditor/main/app/controller/Viewport.js
@@ -505,7 +505,7 @@ define([
             }
         },
 
-        disableEditing: function (disabled) {
+        SetDisabled: function (disabled) {
             this.viewmode = disabled;
             this.header.mnuitemHideHeadings.setDisabled(disabled);
             this.header.mnuitemHideGridlines.setDisabled(disabled);
diff --git a/apps/spreadsheeteditor/main/app/view/FileMenu.js b/apps/spreadsheeteditor/main/app/view/FileMenu.js
index 4f41c7ba0..143e5be61 100644
--- a/apps/spreadsheeteditor/main/app/view/FileMenu.js
+++ b/apps/spreadsheeteditor/main/app/view/FileMenu.js
@@ -127,6 +127,10 @@ define([
                 caption : this.btnRenameCaption,
                 canFocused: false
             });
+            if ( !!this.options.miRename ) {
+                this.miRename.setDisabled(this.options.miRename.isDisabled());
+                delete this.options.miRename;
+            }
 
             this.miProtect = new Common.UI.MenuItem({
                 el      : $markup.elementById('#fm-btn-protect'),
@@ -249,6 +253,8 @@ define([
         },
 
         applyMode: function() {
+            if (!this.rendered) return;
+            
             if (!this.panels) {
                 this.panels = {
                     'opts'      : (new SSE.Views.FileMenuPanels.Settings({menu:this})).render(this.$el.find('#panel-settings')),
@@ -324,8 +330,7 @@ define([
             }
 
             if ( this.mode.disableEditing != undefined ) {
-                this.panels['opts'].disableEditing(this.mode.disableEditing);
-                this.miProtect.setDisabled(this.mode.disableEditing);
+                this.panels['opts'].SetDisabled(this.mode.disableEditing);
                 delete this.mode.disableEditing;
             }
         },
@@ -343,8 +348,7 @@ define([
             }
 
             if (!delay) {
-                if ( this.rendered )
-                    this.applyMode();
+                this.applyMode();
             }
         },
 
@@ -402,6 +406,8 @@ define([
             if ( !this.rendered ) {
                 if (type == 'save') {
                     return this.options.miSave ? this.options.miSave : (this.options.miSave = new Common.UI.MenuItem({}));
+                } else if (type == 'rename') {
+                    return this.options.miRename ? this.options.miRename : (this.options.miRename = new Common.UI.MenuItem({}));
                 } else
                 if (type == 'protect') {
                     return this.options.miProtect ? this.options.miProtect : (this.options.miProtect = new Common.UI.MenuItem({}));
@@ -410,19 +416,25 @@ define([
                 if (type == 'save') {
                     return this.miSave;
                 } else
+                if (type == 'rename') {
+                    return this.miRename;
+                }else
                 if (type == 'protect') {
                     return this.miProtect;
                 }
             }
         },
 
-        disableEditing: function(disabled) {
+        SetDisabled: function(disable, options) {
             if ( !this.panels ) {
-                this.mode.disableEditing = disabled;
+                this.mode.disableEditing = disable;
             } else {
-                this.panels['opts'].disableEditing(disabled);
-                this.miProtect.setDisabled(disabled);
+                this.panels['opts'].SetDisabled(disable);
             }
+
+            var _btn_protect = this.getButton('protect');
+
+            options && options.protect && _btn_protect.setDisabled(disable || !this.mode.isEdit);
         },
 
         btnSaveCaption          : 'Save',
diff --git a/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js b/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js
index b9bbfbf16..d5a4b1c9c 100644
--- a/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js
+++ b/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js
@@ -261,10 +261,11 @@ define([
             this.spellcheckSettings && this.spellcheckSettings.setApi(api);
         },
 
-        disableEditing: function(disabled) {
+        SetDisabled: function(disabled) {
             if ( disabled ) {
                 $(this.viewSettingsPicker.dataViewItems[1].el).hide();
                 $(this.viewSettingsPicker.dataViewItems[2].el).hide();
+                this.viewSettingsPicker.selectByIndex(0, true);
             } else {
                 if ( this.mode.canPrint )
                     $(this.viewSettingsPicker.dataViewItems[1].el).show();
diff --git a/apps/spreadsheeteditor/main/app/view/LeftMenu.js b/apps/spreadsheeteditor/main/app/view/LeftMenu.js
index 8cca99aab..248bdbf94 100644
--- a/apps/spreadsheeteditor/main/app/view/LeftMenu.js
+++ b/apps/spreadsheeteditor/main/app/view/LeftMenu.js
@@ -75,7 +75,7 @@ define([
 
         initialize: function () {
             this.minimizedMode = true;
-            this._state = {};
+            this._state = {disabled: false};
         },
 
         render: function () {
diff --git a/apps/spreadsheeteditor/main/app/view/SignatureSettings.js b/apps/spreadsheeteditor/main/app/view/SignatureSettings.js
index 94bd653c4..53836c5ac 100644
--- a/apps/spreadsheeteditor/main/app/view/SignatureSettings.js
+++ b/apps/spreadsheeteditor/main/app/view/SignatureSettings.js
@@ -393,23 +393,22 @@ define([
             if (this._state.DisabledEditing != disable) {
                 this._state.DisabledEditing = disable;
 
-                var rightMenuController = SSE.getController('RightMenu');
-                if (disable && rightMenuController.rightmenu.GetActivePane() !== 'id-signature-settings')
-                    rightMenuController.rightmenu.clearSelection();
-                rightMenuController.SetDisabled(disable, true);
-                SSE.getController('Toolbar').DisableToolbar(disable, disable);
-                SSE.getController('Statusbar').SetDisabled(disable);
-                SSE.getController('Common.Controllers.ReviewChanges').SetDisabled(disable);
-                SSE.getController('DocumentHolder').SetDisabled(disable, true);
-                SSE.getController('CellEditor').setPreviewMode(disable);
-                SSE.getController('Viewport').disableEditing(disable);
-
-                // var leftMenu = SSE.getController('LeftMenu').leftMenu;
-                // leftMenu.btnComments.setDisabled(disable);
-                SSE.getController('LeftMenu').setPreviewMode(disable);
-                var comments = SSE.getController('Common.Controllers.Comments');
-                if (comments)
-                    comments.setPreviewMode(disable);
+                Common.NotificationCenter.trigger('editing:disable', disable, {
+                    viewMode: disable,
+                    allowSignature: true,
+                    allowProtect: true,
+                    rightMenu: {clear: disable && (SSE.getController('RightMenu').rightmenu.GetActivePane() !== 'id-signature-settings'), disable: true},
+                    statusBar: true,
+                    leftMenu: {disable: false, previewMode: true},
+                    fileMenu: false,
+                    comments: {disable: false, previewMode: true},
+                    chat: false,
+                    review: true,
+                    viewport: true,
+                    documentHolder: true,
+                    toolbar: true,
+                    celleditor: {previewMode: true}
+                }, 'signature');
             }
         },
 
diff --git a/apps/spreadsheeteditor/main/app/view/Statusbar.js b/apps/spreadsheeteditor/main/app/view/Statusbar.js
index 3f5edce6f..ecb08aaef 100644
--- a/apps/spreadsheeteditor/main/app/view/Statusbar.js
+++ b/apps/spreadsheeteditor/main/app/view/Statusbar.js
@@ -507,7 +507,7 @@ define([
                 this.mode = _.extend({}, this.mode, mode);
 //                this.$el.find('.el-edit')[mode.isEdit?'show':'hide']();
                 this.btnAddWorksheet.setVisible(this.mode.isEdit);
-                this.btnAddWorksheet.setDisabled(this.mode.isDisconnected);
+                this.btnAddWorksheet.setDisabled(this.mode.isDisconnected || this.api && (this.api.asc_isWorkbookLocked() || this.api.isCellEdited) || this.rangeSelectionMode!=Asc.c_oAscSelectionDialogType.None);
                 this.updateTabbarBorders();
             },