Order a tree

Hello everyone,

I have a simple question for you.

I created 4 lists of 6 points (indexes from 0 to 6) and I'd like to create a tree which is composed of 6 branches gathering the point of same index.

I have this :

list 3 : 0 1 2 3 4 5 6

list 2 : 0 1 2 3 4 5 6

list 1 : 0 1 2 3 4 5 6

list 0 : 0 1 2 3 4 5 6

and I want to group the points of index 0 in a branch, the points of index 1 in another branch and so on.

I attached a file in which I generated the points.

Thank you in advance for your help !

Regards 

Red