Import object with multiple UVs

Hi.

I´m using Blender to set up and export scenes/objects into a game called URU. I´m making my models in 3DS Max and no want to import them into Blender.

My problem is that I want to be able to import objects with 2 UV sets - one for a tiled texture, and another for a lower res. lightmap.

I managed to import objects fine…but no importer (tried 3ds, obj, nif, x) seems to recognize my second UV.

Any thoughts/tips on this?