Hi,
You can add your own routine to do this.
1.	Click Code Builder button to open code builder
2.	Open LabTalk ogs file: <User File Folder>/Custom.ogs
3.	Copy the script below and paste it to [Main] section
4.	Click Custom Routine to add columns
	//type -b $General.Userbutton;
	//add two new columns
	wks.nCols = wks.nCols + 2;
	//set the first new column as X 
	wks.col = wks.nCols - 1;
	wks.col.type = 4;
	//set the second new column as Y 
	wks.col = wks.nCols;
	wks.col.type = 1;
	//select cells
	worksheet -sl $(wks.nCols - 1) 1 $(wks.nCols) 1;
	//merge long name
	menu -e 35045;


Hope it helps.
Regards, Yuki