Max - there are probably several different ways to do this, so here is one. Let's assume that you have two GUIs named Gui1 and Gui2 and that they are distinct GUIs (i.e. you are not running two instances of the same one). In the Property Inspector for Gui1, set the HandleVisibility property to on, and the Tag property to Gui1. This will allow us to search for the GUI given its (unique) tag. Do the same for Gui2 (except name the tag Gui2). Save both.