Hi DrNo - use of Rhino plug-ins is pretty much not at all feasible because plug-ins are very specifically built to run inside of a particular environment, so they are highly dependent on everything being set up exactly as it is in Rhino. Various services like how the UI works, how point picking works, how selection works, etc.. etc.. are all somewhat different in MoI than in Rhino. Direct plug-in compatibility would only be possible if MoI was set up to be an almost 100% exact clone of Rhino and of course if it was set up like that then what would be the point of having MoI in the first place...

- Michael