Rhino surfaces in spaces

Helo!
I always used AC for modeling. It’s time to change, so i’m trying to draw in rhino 7.
I have big problem (for me, not for u experts :slight_smile: )
I’d like to draw surface by 4 points. The first 3 are on the same flat area, but the 4th point dosen’t extrude this flat surface. (if i draw in perspective). i need this option, because i work on steel sheets. my surface can’t look like banana :slight_smile:
thx for answers and your time

Why not start by skimming through a set of progressive tutorials like the User’s Guide to figure out the interface, the differences, and the similarities?

The User’s Guide is on the Learn page.

Hit this class, for $9.99 you’ll get 24 hrs of teaching and by the end you will be rolling-

thank u for a clue. did it before and can’t find the right way.

It depends on how you are placing your points. A small sample file illustrating the problem would be helpful if you want a more specific answer.

I got it!
I was a cplane, so same with ac