> Boolean curves: You won't have to click inside the areas you
> want to keep or remove? It works without intervention? I think so if I
> understand you well.

Yes, this is correct it works in the exact same steps as a regular solid boolean, no extra picking or intervention required.


> On the other hand, this is restricted to closed curve (how you mentioned) due
> to this automatic handling, isn't it...

Yes, that is the case. I tried to get open curves to work with the merge operator - it almost works but there are some complications that get in the way that won't be easy to solve for now.

Something that involves open curves and manually picking areas, although certainly useful in the right circumstances, just is not what I would call a boolean operation. Boolean operations involve using Difference, Union, or Intersection.

A region picking method would be something I'd consider to be more applicable in the Trim tool instead. Right now in MoI there is a control in Trim that lets you specify whether you are keeping or removing the selected fragments - this would be a good spot to also have a point-in-area selector as another optional way to specify the fragments.

- Michael