This is a simple tutorial on how to make doors closable, and openable.
The first step, is to make a door. Go into the events page, and delete,[4000] onContentStart-Self-ContentStop. Name the door, Door1
The second step, is to make a 4x1x5 where the door will open, as shown in Step2 below. Disable Collision and rendering. Go to the events page of this brick. and put: onActivate-NamedBrick-Door1-ContentStop
The third step is to open your door as you normally would.
The forth step is to click the door where it is, and it will close.