With the terrain I'm working with I end up with some areas of exposed foundation which I would like to cover with rock work (Lava Stone-Rough Hewn). It appears that the pony wall tool will not let me extend the lower wall past the floor level. It also appears that I should be able to assign a wall covering material appearance to the foundation itself but I can't get it to work. Is there a way to add rock work appearance to foundations? Thanks!