Hi Pilou, no currently there is not a way to edit a curve like that - you would need to draw a new curve using the Freeform > "Through points" command to make a new curve that is forced to go through those same exact points.

But applying a big change to a curve while at the same time trying to force it through some same specific points will tend to make the curve have wiggles and bulges in it, so that's something to be aware of - each of the "constraints" that you apply to a curve kind of applies pressure on to it and prevents it from having a more fully smooth shape.

In the future there will probably be some kind of history mechanism that will allow you to edit the points of a "through points" curve to update it.

- Michael