export 3-d assembly with levels

I have a customer who is absolutely desperate for me to be able to export my 3-d from SolidWorks with pre-assigned levels for the different parts in the assembly. They want to bypass their over-woked design department and send my designs straight to programming and the programmers need to have the level information.

I understand that SolidWorks does not have this capability. What I am doing for them now is I export an ACIS, version 5.0 *.sat file to my old seat of Cadkey99. I assign the levels over there and then export from Cadkey to them. This seems like a less than ideal situation to me. The first tool designs I sent this way had fairly prismatic surfaces, so may work just fine for them. However, I cannot see this being a permanent solution.

I am reluctant to purchase a full seat of KeyCreator just for translating and assigning levels. Does anybody know if SpaceClaim or Alibre would work for this? Ideally I would like to use a SolidWorks-native or partner solution, but this is an area that SolidWorks has evidently decided is not important. Therefore I am seeking advice for other ways to solve this issue.

SolidworksImport export