To Add a Mono Valley:
- From the Roof tab > Framing Set, choose Input Framing Set.
- Filter the list by Valleys
- Choose Mono Valley
- Click 1 is to the valley line
- Click 2 is the ridge line
- Click 3 is the start line for valley truss run
- Click 4 is the overhang line for the plane you are setting fill trusses on.
(This is not a factor in the example, but needs to be selected during input.)