code: function() {
          var me = this;
          me.lockedGrid.headerCt.getMenuItems = me.getMenuItems(me.lockedGrid.headerCt.getMenuItems, true);
          me.normalGrid.headerCt.getMenuItems = me.getMenuItems(me.normalGrid.headerCt.getMenuItems, false);
          me.lockedGrid.headerCt.showMenuBy = Ext.Function.createInterceptor(me.lockedGrid.headerCt.showMenuBy, me.showMenuBy);
          me.normalGrid.headerCt.showMenuBy = Ext.Function.createInterceptor(me.normalGrid.headerCt.showMenuBy, me.showMenuBy);
      }
docs: inject Lock and Unlock text Hide/show Lock/Unlock options