A short question re Sketchup Export

I have tried help but couldn't find anything..

I appreciate MoI ability to translate solid geometry so neatly into Sketchup entities

The only thing I haven't got a clue to is how do I export MoI solids as grouped entities?

This question is raised because Autocad exports solid geometry as Sketchup Groups which makes it possible to further process the geometry in Sketchup - unlike (if I'm not missing anything) MoI which does a pretty good job of creating correct geometry but not useful for further processing..

I'd appreciate if anyone could guide me or explain how to make solids as groups in Sketchup.

Thanks

Igor