var wbkDataBox = workbookBox.getDataView();
var setHorizontalButt = new PP.Ui.Button({
	ParentNode: document.body, //DOM parent node
	Content: "Change Display Mode", //text
	Click: PP.Delegate(onClickSetHorizontal)
});
function onClickSetHorizontal(){
	//Get a component used to control workbook view position
	var modeSelector = wbkDataBox.getModeSelectorView();
	//Get metadata of the selected mode change
	var pos;
	if (wbk.getActiveSheet().getMetadata().windowsPosition == "Horizontal")
		{
			pos = modeSelector.getModeSelectorState(PP.TS.Ui.ModeSelectorType.Vertical);
		}
	else
		{
			pos = modeSelector.getModeSelectorState(PP.TS.Ui.ModeSelectorType.Horizontal);
		}
	//Get workbook metadata
	var md = wbk.getMetadata();
	//Set metadata of the selected mode change to workbook metadata
	for (var prop in pos){
		md[prop] = pos[prop];
	}
	//Refresh workbook
	tsService.refreshWbk(wbk, PP.Delegate(function(){
		wbkDataBox.refreshAll();
	}));
}