IIRC, someone was working on a gmf plugin for blender, but idk if it was finished or not. I am using blender like a madman now, and i might make some components if i could get my hands on it. I think it would be a great achievement for the community if we wouldn't be so restricted on the official 3ds Max plugin. I believe if we finish it, we would have a lot more accessibility to customization. I'm willing to help if we give it a shot. Would anyone be interested, or do you think it would be a waste of time?