Hi renklint,

re:
> Then pasted to Rhino 6, copied and pasted both in Moi. Only the polysurface was pasted in Moi.

That's to be expected - SubD is a new object type in Rhino v6 and v7 and isn't stored in Rhino v5 format 3DM files which is currently the latest type that MoI can read.

I think there's some method to convert a SubD Rhino object into a regular NURBS object, you would need to do that to transfer it into MoI.

- Michael