Hi blenddoodler,

> I don't know how you could mold this kind of shape with the current tools.

You can use a sweep with 2 rails to construct that kind of a shape with the current tools. To do it, select the section curves and then run Construct/Sweep, then select the 2 other curves as the guide rails.

The profiles will be swept along the guide rails to create a surface.

Let me know if you want more info on how to work it.

- Michael