Clip a Wall With a Roof
You can shape a wall by clipping it with a roof. The part of the wall above or below the roof will be cut off. For example, you can clip walls of a one-and-a-half-story building: add full-height walls to the second story and then clip the top of the walls with the roof.
- Select one or more walls.
- Do either of the following:- Select Wall | Connection |  Clip. Clip.
- Right-click to open the context-sensitive menu and select  Clip with
            Roof. Clip with
            Roof.
 
- Select Wall | Connection | 
- Select the edge to be clipped and the clipping roof surface in a dialog box.
Note: 
    
  - When you clip walls with a roof, a connection is formed between the roof and the walls. You can remove the connection by disconnecting the wall from the roof.

