How to update the Dataset of a report running with universe?

I am facing some issue in cross-tab.

My requirement is , on click of any cell in cross-tab i want to convert  it into editable cell.

Converting into editable cell is something which I achieved using below code:

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function onCellClick(e) {

  ---

  ---

  var text=this.innerHTML;

  var text = $.trim(this.innerHTML);

         $('<input />').attr({ type: 'text', name: 'text' }).appendTo($(this)).val(text).select().blur(

        function () {

            var newText = $(this).val();

            $(this).parent().text(newText).find('input').remove();

            var rIndex=$(this).closest('tr').index();

            data.data[rIndex]=newText;

            that.firePropertiesChanged(["data"]);

            //that.firePropertiesChanged(["visSelection"]);

    that.fireEvent("onSelect");

        });

  }

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I just modified the sample code.

My report is  running with universe.

Now I want to update the Dataset with this updated value.

Can anyone provide any help on the same?

Thanks