Hi Bartosh - Moi just does not have the toolset for doing that type of reverse engineering work, especially if you want to have an accurate conversion.

Those tools have a lot of special functionality that is very specific for those tasks. MoI just does not have the same tools in it.

You can find some other possible tools under the reverse engineering section of the Rhino web site:
http://www.rhino3d.com/resources/#tabs-17

I would not recommend trying to do this type of conversion manually in MoI since it is just not the right kind of tool for that type of job.

If you need only a conversion on pretty simple forms without much regard to accuracy you could attempt this technique though:
http://moi3d.com/forum/index.php?webtag=MOI&msg=6095.1

But really the type of work that you are trying to do here is just not what MoI is designed to be used for. You pretty much need some more specialized tools to do reverse engineering.

- Michael