Add or remove a stair on one or more levels in a multilevel stair.
 (Connect/Disconnect Levels).
 (Connect/Disconnect Levels). 
  
 (Connect Levels)
 (Connect Levels) 
		
 (Disconnect Levels)
 (Disconnect Levels) 
		Notice that the cursor displays a plus (+) symbol when you are adding stairs and a minus (-) symbol when removing stairs. You will only see your changes after you click Finish.
 (Finish).
 (Finish). 
  