Oh. Well in that case, I think the easiest thing to do would be to make a trigger that gives normal shared control after a player leaves. I've never use full control so I wouldn't know...
When a player who is your ally leaves the game, you then see a display in the upper right corner of their current resources and the hero icon(s) for their trained hero(es) under your own on the left side of the screen. This is what I'm trying to stop from appearing.
