Okay, I have a wall with some components. Block base, rowlock, brick, accent stripe. I'm designing a car wash, and at the entrance, the tunnel is about 11" BFF (below finished floor). When I modified my floor line to show this for the rear wall, it offset everything 11". The base, rowlock, brick, and accent stripe are all 11" too low. Is there a way to modify the floor line, but have ACA just "add" to the base material and not adjust it throughout the whole wall?