Sorry, my mistake. I have talked about dxf and meant 3ds. Ashes over my head. I think dxf is simply not able to deal with several parts in one model. But thats a guess! I have double-checked Amapi now. It can import 3dmf (from greatbuildings) and save the model in pieces as 3ds. And this structure does come into Vue as well. BUT. Because mostly the parts does not have names, you end up with a long list of elements called "object". And you have to sort out what is what! I think UVMapper is a great help to sort models out.

One day your ship comes in - but you're at the airport.