Hi Bravlin, someday perhaps I'll be able to focus on more surface control point editing functionality. It hasn't been a focus area so far because of its limited use in CAD object structure as I described and because there are many polygon modeling programs that already focus very much on that type of modeling.

I recommend using a polygon modeling program if you want to do that style of modeling though, not MoI. It is not currently a very developed or targeted area in MoI.

- Michael

You can make that in Moi ! ; (before maybe some deformations's cage or other marvelous things! ;)

But all surfaces must be Separated : moving tweaking points can be on several surfaces on the same time!
So for a cube don't move it's edges if you want keep it as a solid when you Join surfaces at the end of tweaking!

Thanks Pilou for opening my eyes to this! Separating to surfaces and then playing with points that belong to different surface and then joining can be a great way to deform a solid in a very controlled way.