Krush, that's not the xy action. As for wall geometry, I just grabbed a window from one of the many buildings here already in use and turned it into a block and made it dynamic. I'm not even sure it was the best one to use, but it's now on four other buildings. As for breaking the wall geometry, it's already broken. I'm righting a ship that began in 1908 and has gone through many phases of change, including what is the best cad platform to use. I have about 70 different buildings to work on and five of them are high rises with the lowest one being 15 stories. The current drawings have no blocks. Walls, windows and doors on the same layer, with some, fortunately having different colors, but others do not. To top it off, most of the linework has no object snap usage. All I'm doing is correcting what exists and trying to make it more efficient. It may be a good idea to do what you are saying there. I'll look into that.
Kate, thanks. Will, I remember that now. I'm sure it has its uses, but I guess I like to stick with consistency. For moving backwards or for making objects move at different rates, I've always used the distance multiplier and making it negative was the first option I figured out when I took up dynamic blocks.
Well, this has been fun. Hope we all learned something.