Hi Marc, yeah I think there is some potential to make this work through a kind of layer or grouping type system.

If you could assign the input curves to be grouped with the output object, and therefore move together with them when you repositioned the object, but have them hidden, then it seems like that would have all the ingredients in place.

I'll try to consider this scenario when I work on grouping for v2. Sometimes grouping with hidden objects can be tricky itself though.

- Michael