MCX component output as tree

Hello.

MCX (Multi curve intersection) outputs curve index in one list and division parameters on another.

The index table would repeat the same curve index the number of times that particular curve has intersected.

If curve 1 has sectioned 4 times, curve 2 one time, curve 3 not sectioned and curve 4 two times sectioned the output would be

List1     List2

1          0.212

1          0.583

1          0.744

1          0.912

2          0.443

4          0.353

4          0.674

How can I convert this "relational" scheme o a hierarchical tree?

Something like:

{1}

0.212

0.583

0.744

0.912

{2}

0.443

{4}

0.353

0.674

Shouldn't MLX component output this way?

Also shouldn't it output a list of non intersected curves. I guess one can append distinct indices from the initial curves input but I would be simpler

I'm still struggling with the list, sets and tree components so any tips would be great.

Thanks