diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 000000000..9737a044d
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,13 @@
+# Change log
+## 5.1.1
+### All Editors
+* 
+
+### Document Editor
+* 
+
+### Spreadsheet Editor
+* 
+
+### Presentation Editor
+* 
diff --git a/apps/spreadsheeteditor/main/app/controller/DocumentHolder.js b/apps/spreadsheeteditor/main/app/controller/DocumentHolder.js
index d5b8d9929..a0045ae27 100644
--- a/apps/spreadsheeteditor/main/app/controller/DocumentHolder.js
+++ b/apps/spreadsheeteditor/main/app/controller/DocumentHolder.js
@@ -1413,7 +1413,7 @@ define([
                 documentHolder.pmiFilterCells.setVisible(iscellmenu && !iscelledit && !internaleditor);
                 documentHolder.pmiReapply.setVisible((iscellmenu||isallmenu) && !iscelledit && !internaleditor);
                 documentHolder.ssMenu.items[12].setVisible((iscellmenu||isallmenu||isinsparkline) && !iscelledit);
-                documentHolder.pmiInsFunction.setVisible(iscellmenu);
+                documentHolder.pmiInsFunction.setVisible(iscellmenu && !iscelledit);
                 documentHolder.pmiAddNamedRange.setVisible(iscellmenu && !iscelledit && !internaleditor);
 
                 if (isintable) {
@@ -1443,7 +1443,7 @@ define([
                 documentHolder.ssMenu.items[17].setVisible(iscellmenu && !iscelledit && this.permissions.canCoAuthoring && this.permissions.canComments);
                 documentHolder.pmiAddComment.setVisible(iscellmenu && !iscelledit && this.permissions.canCoAuthoring && this.permissions.canComments);
                 /** coauthoring end **/
-                documentHolder.pmiCellMenuSeparator.setVisible(iscellmenu || isrowmenu || iscolmenu || isallmenu);
+                documentHolder.pmiCellMenuSeparator.setVisible(iscellmenu && !iscelledit || isrowmenu || iscolmenu || isallmenu);
                 documentHolder.pmiEntireHide.isrowmenu = isrowmenu;
                 documentHolder.pmiEntireShow.isrowmenu = isrowmenu;
 
diff --git a/apps/spreadsheeteditor/main/app/controller/Toolbar.js b/apps/spreadsheeteditor/main/app/controller/Toolbar.js
index a48462ceb..2a2fd26c2 100644
--- a/apps/spreadsheeteditor/main/app/controller/Toolbar.js
+++ b/apps/spreadsheeteditor/main/app/controller/Toolbar.js
@@ -3006,7 +3006,7 @@ define([
         },
 
         applyFormulaSettings: function() {
-            if (this.toolbar.rendered) {
+            if (this.toolbar.btnInsertFormula.rendered) {
                 var formulas = this.toolbar.btnInsertFormula.menu.items;
                 for (var i=0; i<Math.min(4,formulas.length); i++) {
                     formulas[i].setCaption(this.api.asc_getFormulaLocaleName(formulas[i].value));
diff --git a/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js b/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js
index d302f4196..51e6755df 100644
--- a/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js
+++ b/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js
@@ -602,6 +602,7 @@ define([
                 data        : [
                     { value: 'en', displayValue: this.txtEn, exampleValue: this.txtExampleEn },
                     { value: 'de', displayValue: this.txtDe, exampleValue: this.txtExampleDe },
+                    { value: 'es', displayValue: this.txtEs, exampleValue: this.txtExampleEs },
                     { value: 'ru', displayValue: this.txtRu, exampleValue: this.txtExampleRu },
                     { value: 'pl', displayValue: this.txtPl, exampleValue: this.txtExamplePl }
                 ]
@@ -807,10 +808,12 @@ define([
         txtDe: 'Deutsch',
         txtRu: 'Russian',
         txtPl: 'Polish',
+        txtEs: 'Spanish',
         txtExampleEn: ' SUM; MIN; MAX; COUNT',
         txtExampleDe: ' SUMME; MIN; MAX; ANZAHL',
         txtExampleRu: ' СУММ; МИН; МАКС; СЧЁТ',
         txtExamplePl: ' SUMA; MIN; MAX; ILE.LICZB',
+        txtExampleEs: ' SUMA; MIN; MAX; CALCULAR',
         strFuncLocale: 'Formula Language',
         strFuncLocaleEx: 'Example: SUM; MIN; MAX; COUNT',
         strRegSettings: 'Regional Settings',
diff --git a/apps/spreadsheeteditor/main/locale/en.json b/apps/spreadsheeteditor/main/locale/en.json
index 01c41d387..d65f53f98 100644
--- a/apps/spreadsheeteditor/main/locale/en.json
+++ b/apps/spreadsheeteditor/main/locale/en.json
@@ -1216,6 +1216,7 @@
   "SSE.Views.FileMenuPanels.MainSettingsGeneral.txtCm": "Centimeter",
   "SSE.Views.FileMenuPanels.MainSettingsGeneral.txtDe": "Deutsch",
   "SSE.Views.FileMenuPanels.MainSettingsGeneral.txtEn": "English",
+  "SSE.Views.FileMenuPanels.MainSettingsGeneral.txtEs": "Spanish",
   "SSE.Views.FileMenuPanels.MainSettingsGeneral.txtInch": "Inch",
   "SSE.Views.FileMenuPanels.MainSettingsGeneral.txtLiveComment": "Commenting Display",
   "SSE.Views.FileMenuPanels.MainSettingsGeneral.txtMac": "as OS X",
diff --git a/build/Gruntfile.js b/build/Gruntfile.js
index 3cdcd80ec..b2d7c1496 100644
--- a/build/Gruntfile.js
+++ b/build/Gruntfile.js
@@ -322,7 +322,9 @@ module.exports = function(grunt) {
                     files: packageFile['mobile']['copy']['index-page']
                 },
                 'images-app': {
-                    files: packageFile['mobile']['copy']['images-app']
+                    files:[]
+                        .concat(packageFile['mobile']['copy']['images-app'])
+                        .concat(packageFile['mobile']['copy']['images-common'])
                 }
             },
             
diff --git a/build/common.json b/build/common.json
index b835d4ece..67e3bc2ea 100644
--- a/build/common.json
+++ b/build/common.json
@@ -1,7 +1,7 @@
 {
     "name": "common",
     "version": "4.3.0",
-    "build": 32,
+    "build": 35,
     "homepage": "http://www.onlyoffice.com",
     "private": true,
     "sdk": {
diff --git a/build/documenteditor.json b/build/documenteditor.json
index a1df0f41a..9d3e536f1 100644
--- a/build/documenteditor.json
+++ b/build/documenteditor.json
@@ -1,7 +1,7 @@
 {
     "name": "documenteditor",
     "version": "4.3.0",
-    "build": 1143,
+    "build": 1146,
     "homepage": "http://www.onlyoffice.com",
     "private": true,
     "main": {
@@ -337,6 +337,14 @@
                     "src": "**",
                     "dest": "../deploy/web-apps/apps/documenteditor/mobile/resources/img/"
                 }
+            ],
+            "images-common": [
+                {
+                    "expand": true,
+                    "cwd": "../apps/common/mobile/resources/img/",
+                    "src": "**",
+                    "dest": "../deploy/web-apps/apps/documenteditor/mobile/resources/img/"
+                }
             ]
         }
     },
diff --git a/build/presentationeditor.json b/build/presentationeditor.json
index 124dd93ef..ce9cf3ab6 100644
--- a/build/presentationeditor.json
+++ b/build/presentationeditor.json
@@ -1,7 +1,7 @@
 {
     "name": "presentationeditor",
     "version": "4.3.0",
-    "build": 778,
+    "build": 780,
     "homepage": "http://www.onlyoffice.com",
     "private": true,
     "main": {
@@ -346,6 +346,14 @@
                     "src": "**",
                     "dest": "../deploy/web-apps/apps/presentationeditor/mobile/resources/img/"
                 }
+            ],
+            "images-common": [
+                {
+                    "expand": true,
+                    "cwd": "../apps/common/mobile/resources/img/",
+                    "src": "**",
+                    "dest": "../deploy/web-apps/apps/presentationeditor/mobile/resources/img/"
+                }
             ]
         }
     },
diff --git a/build/spreadsheeteditor.json b/build/spreadsheeteditor.json
index e7f64f934..63c60b2b2 100644
--- a/build/spreadsheeteditor.json
+++ b/build/spreadsheeteditor.json
@@ -1,7 +1,7 @@
 {
     "name": "spreadsheeteditor",
     "version": "4.3.0",
-    "build": 881,
+    "build": 884,
     "homepage": "http://www.onlyoffice.com",
     "private": true,
     "main": {
@@ -354,6 +354,14 @@
                     "src": "**",
                     "dest": "../deploy/web-apps/apps/spreadsheeteditor/mobile/resources/img/"
                 }
+            ],
+            "images-common": [
+                {
+                    "expand": true,
+                    "cwd": "../apps/common/mobile/resources/img/about",
+                    "src": "**",
+                    "dest": "../deploy/web-apps/apps/spreadsheeteditor/mobile/resources/img/about"
+                }
             ]
         }
     },