I have a terrain and am using c_move to move my character but it goes right through the terrain. My question is... Am I doing it wrong or does c_move not interact with terrains?

Can anyone point me in the right direction?

Another question: after creating a terrain... Is there any way to modify its position? I tried to direclty change it's x and y coordinate values but it dosnt seem to work. On creation I can place it where I want but afterwards I cant seem to "re-locate" it. Is this some kind of restraint of how terrains work?