After quick test I can say than now I can export simple and complex models.
Two poblems:
1. When I open the project in Studio the model is rotate... not really bad: I change the rotation value (see the picture)
2. Really big problem: the mxs file opened in studio have only one big object with multiple materials assigned... the only way to change the materials is the triangle selection (see the picture)
This is a mac and win plug-in problem.
The direct render from archicad work fine...
PETER