Yes, a footing tool would be a logical (and, even, necessary) feature for an architectural drawing program. I started out drawing my footings with a polyline, but had trouble with a curved wall which was solved easily by making the footings from the walls.
Does anyone know if you can join walls of different heights and, if so, how? What criteria limit the joining of walls? I have tried to join my curved wall to my straight ones and VW won't let me do it.