I've got a project where I'd need to change from 6" horizontal siding, to a shaker style siding in the same wall plane, I'll change patterns at the window sill, and what I'd really like to do is have this sill run around the perimeter, like a skirboard (with drip cap) where I make this transition.
I'd like this to show up in my 3D models, question is, should I create a wall, or is there a way to manage this in 3D.