Hi renklint, probably what's happening is that it's the PDF clipboard format being used rather than 3DM format.

The problem is likely that Rhino v7 is not telling the OS clipboard system that it can produce a Rhino v5 3DM format for the clipboard data. That's what MoI would need to see in the clipboard for it to work.

What operating system are you running on? I can probably cook up a helper app that could make things work by translating Rhino v7 3DM format on the clipboard into Rhino v5 format, then you'd modify the paste function to run the helper app right before doing the paste.

I probably need to collect a little bit of information first like get the names of the clipboard formats that Rhino v7 is putting on the clipboard.

- Michael