Combine Roofs by Clipping One of Them

Clip a group of slopes with another group of slopes as follows:

Select Roofs > Clip Roofs, First Selected to Clip.
Select one of the following functions from the contextual toolbar:
- Remove below - Slope sections below the cutting point will be removed.
- Remove above - Slope sections above the cutting point will be removed.
- Ask slopes to remove - The program will ask you to select the slope sections to be removed.
Select the slopes to be clipped.
Select Confirm.
Select one of the following functions from the contextual toolbar:
- Fit top sides - The tops of the new edges will be joined together.
- Fit bottom sides - The bottoms of the new edges will be joined together.
Select cutting slopes.
Select Confirm.
If you selected the auxiliary function Ask slopes to remove, the program activates one section at a time of the selected slopes, and you can select in a message box whether the section is to be removed or not.

Do either of the following:
- Click Delete in the message box.
- Click Leave in the message box.
Otherwise the program removes the sections either above or below the cutting point automatically.