Next issue... Foundation with pony wall. Upper Wall 2x6 with siding Lower wall concrete, 8". I created a new  concrete wall and changed the fill pattern to an angle hatch pattern.  I want this to display for the lowered concrete wall. I named it "concrete pony wall". I changed the pony wall to have the "Concrete pony wall" as the lower wall. In the Foundation Layer Set, I set the pony wall to display "lower wall".  Exactly what I wanted, as the full height wall fill pattern