Hi David,

> For example in the picture I made the shape with sweep, what I had in mind is that if I modify any of
> these curves after the sweep is done, the other curves follow the modification to fit.

Well, you can modify the curves right after doing the sweep, and have the sweep surface itself recalculate and update, but it's the generated surface that will get recalculate, not other curves.

It's not really clear to me exactly how you would expect the other curves to update when you change some other curve - unlike the surface that is generated from curves the other curves are usually just drawn in each individually and don't usually have any kind of special connection to one another...

- Michael