anchor.diff:  								scale: 'medium',
   								iconCls: 'fa fa-2x fa-plus',
   								handler: function () {
  +									actionAddMapping();
   								}
   							},
   							{
  
positive.code: 								iconCls: 'fa fa-2x fa-edit',
  								disabled: true,
  								handler: function () {
  								}
  							},
  							{
  
negative.code: 				]
  
  			});
  
  			var actionAddMapping = function actionAddMapping() {
  
  			};
  
  			var actionEditMapping = function actionEditMapping(record) {
  
  			};
  
  			var actionDeleteMapping = function actionDeleteMapping(record) {
  
  			};
  
  
  			var mainPanel = Ext.create('Ext.tab.Panel', {
  