Cut the auxiliary wall with the roof
- Select
Walls > 
Clip All Walls with Roof. - Disable selecting the interior walls by clicking the
Select
interior walls button on the contextual toolbar. - Select the
Select all of same type
function. You can select all walls of the same type by clicking one
wall of the desired type. The walls are of the same type when they
have the same parameters. - Select the auxiliary wall (A). The walls (B) and (C) become selected as well.
- Select Confirm. The Stretch Wall Layer to Roof dialog box opens.
- Make the following selections:
- Select the Which end of wall
Top radio button - Select the To which side of roof Bottom radio button
- Select the Which end of wall
- Confirm by clicking OK.
- Quit by pressing the Esc key.
- Save the project by selecting File > Save.
