Object Drawing Priority on overlap? example reques

I tried to do that just now but I dunno what I'm doing wrong, there's no good tutorial on how to manipulate TList with almsot all commands in there...

I'm trying to remove the last object and put it in first place..

		Local test44:QGI_TWindow = WOrder.Last
		ListRemove(WOrder, WOrder.LastLink) 
		ListAddFirst WOrder, test44