Hi okapi, I'd be kind of worried about doing that since it is changing the data...

Like for instance if that happened when you did a copy/paste from Rhino into MoI then if you opened up Rhino again and did a copy/paste back into Rhino you would not have the same data that you started with.

There is a way that you can get your Rhino meshes converted into lines currently though, by exporting them to OBJ format and then using the Obj to 3DM wireframe converter program.

- Michael