Matching a flat list of curves to a tree of points


I want to do what the tilte says:

What would be the most convenient way?
Thanks! (15.3 KB)

Thanks Ethan,

I thought about that, than the list lengths match.But they dont have the same layout after:

Sorry if I missed to decribe better.


a little modification of your definition

Thanks Ethan, I knew there should be a simple solution