Smooth curves in a 3D room

Hi everyone

I am new to Rhino but I have to model something more or less complex.
I have to reconstruct a surface on a topography. For this I need to be able to draw curves
in a 3D room and that’s where my problem lies. I am until now only capable of drawing straight lines as you will see in the file attached. These lines should represent a smooth slope. Can somebody help me out? Vp_moved_mesh_v2.3dm (16.8 MB)

1.) Draw straight line between two points.
2) _Rebuild to add additional control points into your curve
3.) _Pointson to show control points
4.) Move your control points around with the gumball

Oh wow, that simple! Thanks sooo much :slight_smile: