Sorry, I haven't got version 5.

Today I purchased Moi3d and have downloaded v4 beta.

I can kinda copy/paste curves from Rhino 7 to Moi v4.

But if the curves are 3d they are squished to flat on z.

Pasted a SubD and a Nurbs closed surface from Rhino 7, which came out as flat curves in Moi.
Then pasted to Rhino 6, copied and pasted both in Moi. Only the polysurface was pasted in Moi.