Originally Posted by Venom
one little question though: i've also found a tutorial in which they say there's a "func_button", but i can't use it because from the moment i deselect the entity it, it's gone. The same with "func_door". Is this because Hammer for SiN Episodes is currently only optimized for Arena Mode or something?
I've used func_door and func_button a lot so I know they work.
How are you using them? Make a brush, right click on it and choose tie to entity, choose func_door or func_button and hit apply.