Change Wall Height

[Jeffrey Bianchi]

I am using Home Designer Pro 2012.

Currently doing the "before" drawings for a renovation project.

Attached is a picture of the actual structure, and a cross section of the same area. How do I reduce the height of the left and right exterior walls, so that the height of the roof overhang is reduced?

I'm sure there is a simple command, but after spending much time playing with the roof and wall dialogs I can't figure it out.

Thanks in advance.