diff --git a/apps/common/main/lib/component/SideMenu.js b/apps/common/main/lib/component/SideMenu.js
index bff4e986ca..76ccaf2dec 100644
--- a/apps/common/main/lib/component/SideMenu.js
+++ b/apps/common/main/lib/component/SideMenu.js
@@ -46,6 +46,7 @@ define([
 
     Common.UI.SideMenu = Backbone.View.extend((function () {
         return {
+            buttons: [],
             btnMoreContainer: undefined,
 
             render: function () {
@@ -123,7 +124,7 @@ define([
                                     caption: btn.hint,
                                     iconImg: btn.options.iconImg,
                                     template: _.template([
-                                        '<a id="<%= id %>" class="menu-item">',
+                                        '<a id="<%= id %>" class="menu-item" tabindex="-1" type="menuitem">',
                                         '<img class="menu-item-icon" src="<%= options.iconImg %>">',
                                         '<%= caption %>',
                                         '</a>'
diff --git a/apps/common/main/lib/view/Plugins.js b/apps/common/main/lib/view/Plugins.js
index 0fcc87e9b5..964d44fd12 100644
--- a/apps/common/main/lib/view/Plugins.js
+++ b/apps/common/main/lib/view/Plugins.js
@@ -333,6 +333,7 @@ define([
                 dataHintDirection: 'bottom',
                 dataHintOffset: 'small'
             });
+            this.lockedControls.push(btn);
             return btn;
         },
 
diff --git a/apps/documenteditor/main/app/controller/LeftMenu.js b/apps/documenteditor/main/app/controller/LeftMenu.js
index f4b77cf723..b709a2fabe 100644
--- a/apps/documenteditor/main/app/controller/LeftMenu.js
+++ b/apps/documenteditor/main/app/controller/LeftMenu.js
@@ -645,6 +645,7 @@ define([
             this.viewmode = viewmode;
 
             this.leftMenu.panelSearch && this.leftMenu.panelSearch.setSearchMode(this.viewmode ? 'no-replace' : 'search');
+            this.leftMenu.setDisabledPluginButtons(this.viewmode);
         },
 
         SetDisabled: function(disable, options) {
diff --git a/apps/pdfeditor/main/app/controller/LeftMenu.js b/apps/pdfeditor/main/app/controller/LeftMenu.js
index a6edca1336..e01776f2d6 100644
--- a/apps/pdfeditor/main/app/controller/LeftMenu.js
+++ b/apps/pdfeditor/main/app/controller/LeftMenu.js
@@ -568,6 +568,7 @@ define([
             var viewmode = this._state.disableEditing;
             if (this.viewmode === viewmode) return;
             this.viewmode = viewmode;
+            this.leftMenu.setDisabledPluginButtons(this.viewmode);
         },
 
         SetDisabled: function(disable, options) {
diff --git a/apps/presentationeditor/main/app/controller/LeftMenu.js b/apps/presentationeditor/main/app/controller/LeftMenu.js
index 843ac706df..8025102d9d 100644
--- a/apps/presentationeditor/main/app/controller/LeftMenu.js
+++ b/apps/presentationeditor/main/app/controller/LeftMenu.js
@@ -498,6 +498,7 @@ define([
             this.viewmode = mode;
 
             this.leftMenu.panelSearch && this.leftMenu.panelSearch.setSearchMode(this.viewmode ? 'no-replace' : 'search');
+            this.leftMenu.setDisabledPluginButtons(this.viewmode);
         },
 
         onApiServerDisconnect: function(enableDownload) {
diff --git a/apps/spreadsheeteditor/main/app/controller/DocumentHolder.js b/apps/spreadsheeteditor/main/app/controller/DocumentHolder.js
index db55bdb730..c160f7c703 100644
--- a/apps/spreadsheeteditor/main/app/controller/DocumentHolder.js
+++ b/apps/spreadsheeteditor/main/app/controller/DocumentHolder.js
@@ -192,6 +192,7 @@ define([
                     me.onCellsRange(status);
                 },
                 'tabs:dragend': _.bind(me.onDragEndMouseUp, me),
+                'pivot:dragend': _.bind(me.onDragEndMouseUp, me),
                 'protect:wslock': _.bind(me.onChangeProtectSheet, me)
             });
             Common.Gateway.on('processmouse', _.bind(me.onProcessMouse, me));
diff --git a/apps/spreadsheeteditor/main/app/controller/LeftMenu.js b/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
index 6097f5b311..10810f4c00 100644
--- a/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
+++ b/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
@@ -629,6 +629,7 @@ define([
             this.viewmode = mode;
 
             this.leftMenu.panelSearch && this.leftMenu.panelSearch.setSearchMode(this.viewmode ? 'no-replace' : 'search');
+            this.leftMenu.setDisabledPluginButtons(this.viewmode);
         },
 
         onApiServerDisconnect: function(enableDownload) {
diff --git a/apps/spreadsheeteditor/main/app/view/PivotSettings.js b/apps/spreadsheeteditor/main/app/view/PivotSettings.js
index 18d6f527f6..8733628669 100644
--- a/apps/spreadsheeteditor/main/app/view/PivotSettings.js
+++ b/apps/spreadsheeteditor/main/app/view/PivotSettings.js
@@ -208,6 +208,7 @@ define([
         onDragEnd: function() {
             this._dragEl && this._dragEl.remove();
             this._dragEl = null;
+            Common.NotificationCenter.trigger('pivot:dragend', this);
         },
 
         onFieldsDragStart: function (item, index, event) {