Also one reason why I haven't dealt with that curve offset issue is that it is not very clear how non-closed curves should behave for that kind of "apply same state to all".

Possibly the current behavior where it applies the side detection to each curve individually with respect to the picked point is actually the better behavior for open curves. Otherwise the implicit direction of the curve would have a big effect and it is not very good to need to adjust the curve's starting and ending direction all the time to make things work.

- Michael