In response to K Elrod: Tip 763 is operationally similar, but not the same code -- it's much more basic (and a lot shorter) than this one. It always asks for the User to specify a base point for each selection set, whereas this one has the option, when there's only one thing selected and it has some kind of logical base point of its own, to use that. In response to Alexey Koulik, I don't think your item 4 is an issue. There's no reason a User shouldn't be allowed to select any and every kind of object(s) to swap the locations of. The routine doesn't filter in the selection, but for objects without their own logical reference point, it won't let you try to use such a point, because it gives you that option only for entity types that DO have such a thing, and only if the selection is of only one object. I agree with your other "complaints," and I would add one: there are additional entity types that have some kind of logical reference point, which should be added [e.g. Ellipse, Wipeout, Image, Leader, Mtext, Rtext, Point, maybe some others in newer versions than my 2004]. Some of those may be missing from the original code just because they may not have existed in AutoCAD when it was written.