javascript - Merging the cell using button in handsontable -

in handsontable, can merge cell pressing ctrl + m. want merge cell in handsontable using button. not in coding, suggestion or appreciated.

 <script>        document.addeventlistener("domcontentloaded", function() {          var container = document.getelementbyid('maintable'), hot;          hot = new handsontable(container, {             data: handsontable.helper.createspreadsheetdata(50, 26),             minrows: 5,             mincols: 6,             rowheaders: true,             colheaders: true,             mergecells: true,             currentrowclassname: 'current row',             currentcolclassname: 'current col'          });         hot.selectcell(2,2);          function binddumpbutton() {             if (typeof handsontable === "undefined") {                 return;             }              handsontable.dom.addevent(document.body, 'click', function (e) {                  var element = e.target || e.srcelement;                  if (element.nodename == "button" && element.name == 'dump') {                     var name = element.getattribute('data-dump');                     var instance = element.getattribute('data-instance');                     var hot = window[instance];                     console.log('data of ' + name, hot.getdata());                 }             });         }         binddumpbutton();       });