Hans won't be able to answer to you on this one since he's not the programmer of Sweet Home 3D (no offense Hans
).Until now and probably for a long time, plan items are not bound to each other in Sweet Home 3D and I wouldn't like to reopen this subject. On the developer side, this is much simpler to program as you seem to guess it, but it lets me more time to program other features. On the user side, this gives some freedom since the user doesn't need to remember the logic of objects that would be bound to each other, but on the other side he may have to change some items when he moves/changes other ones.
----------------------------------------
Emmanuel Puybaret, Sweet Home 3D creator
