I just come to see the poverty of imports in MoI.

Because to make a good geodesic dome, we need the right measures of the struts, connectors and pannels; it's not a so simple polyhedron. So I ask me how we can import dxf, obj, 3ds?
I have tried to import a .igs file converted with Amapi Pro 7.5, but MoI doesn't open nothing.

Somebody have a solution?
Why MoI cannot import all the formats that it exports very well?