Hi Martin, one tip for Cinema4D Sketch&Toon is that if you want edges to be drawn you will want to export with "Weld vertices along edges" turned off in the Meshing options dialog when you save your OBJ file out from MoI.

That will make the polygons for every surface in MoI to have their own individual vertices at boundary edges and then Sketch&Toon will be able to see those areas as boundaries to generate outlines along them.

- Michael