Well, I guess I'm going a bit off-topic here, but adding an extra control is the cheap way of solving a problem that should be solved in a much more graceful way. Now people have to bind 2(?) additional keys, just for the 'snapped' building. Tremulous is an FPS-game, not a flight simulator. Look for example at something completely different, namely DOOM3 and it's way of handling computer screens and what not. No extra controls required, only a lot of extra coding. That's the way a situation like this should be solved in my view, instead of going down the obvious 'let's add another control' route.