I am trying to have it that when you select a certain object, and Ctrl is not down, that everything but the one you selected will be deselected.
I have it that if other instances are selected and you hold Ctrl they will be selected too, or deselected, but can't get this other part working.
I've attached a CAPX of this, and am hoping someone here can help. As you can tell by viewing it, it's going to become an RTS, and ideally it should work like the original Warcraft or Starcraft does with unit selection :)
Using R243 for all examples