I'd like to be able to use a command like stretch (see manual), but that doesn't work on 3d objects. The helpfile doesn't seem to tell me (or i'm blind) how to do so. Scale works on 3d objects, but I don't know how to calculate the factor for that. More importantly; it will resize it in every dimension. What I like about stretch is that it can take one 'side plane', and 'move' that..