first off, what are you trying to do? make it so the unit is movable while it's off the map? make it so you can move where it comes back? make it so it doesn't even leave the map or comes back right after leaving?
so from what i gathered from that last post, you want the abilities to work without taking the units off of the map, right? chances are you could just take away the "remove person" trigger in the trigger spells but that could mess up the spells