Same question. (Honestly, because I cannot find the original thread I had made for this.. suspicions of it being deleted yet linger)
Download Link to the Rmf/Bsp:
http://www.megaupload.com/?d=2H2T63UQ The goal is to set it to where the button will trigger the func_illusionary to be toggled visible to invisible and vice-versa.
The multi_manager is there because ultimately I want the button to trigger multiple func_illusionary.
(side note: Forgive me for not setting the button to 'shoot to press', I completely forgot about it when I put this together)