//Variable that will store selected series
	var selSeries;						
	//Repository interaction end event handler. Used to set availability of the 
	//"Block Series" button depending on whether it is available to block the selected series and set whether
	// there are blocked series in workbook
	metabase.EndRequest.add(PP.Delegate(function(){
		//Get workbook selected series
		selSeries = wbk.getActiveSheet().getSelectedSeries();
		//Set button availability
		if (selSeries.length == 1 && PP.TS.isGroupSerie(selSeries[0]))
		{
			ungroupSeriesButt.setEnabled(True);
		}
		else
		{
			ungroupSeriesButt.setEnabled(False);
		}			
		}));
			
	var ungroupSeriesButt = new PP.Ui.Button({
		ParentNode: document.body, //DOM parent node
		Content: "Ungroup Series", //text
		Click: PP.Delegate(onClickUngroupSeries)
		});
				
	function onClickUngroupSeries()
	{			
		//Ungroup workbook series
		tsService.UnGroupSeries(wbk, selSeries, PP.Delegate(onUngroupSeries, this));
		//UnGroupSeries method execution end event handler
		function onUngroupSeries(sender, args){
			//Refresh to see ungrouped series
			workbookBox.refreshAll();
		}
	}