Edit file File name : plugin.js Content :(function () { var hr = (function () { 'use strict'; var global = tinymce.util.Tools.resolve('tinymce.PluginManager'); var register = function (editor) { editor.addCommand('InsertHorizontalRule', function () { editor.execCommand('mceInsertContent', false, '<hr />'); }); }; var Commands = { register: register }; var register$1 = function (editor) { editor.addButton('hr', { icon: 'hr', tooltip: 'Horizontal line', cmd: 'InsertHorizontalRule' }); editor.addMenuItem('hr', { icon: 'hr', text: 'Horizontal line', cmd: 'InsertHorizontalRule', context: 'insert' }); }; var Buttons = { register: register$1 }; global.add('hr', function (editor) { Commands.register(editor); Buttons.register(editor); }); function Plugin () { } return Plugin; }()); })(); Save