I asked about this a few years ago, and there was nothing possible. That was back in V11. So I ask again. When I bring an autocad file it brings with it sometimes thousands of classes. If they would just use a dash instead of a space it would sub class them so much better. See below for a partial list of classes in one document. What I want to do is assign these to the class "Set-" and have them keep all the rest of their class name. Any idea if that's possible?