I am stopped on my work because i don't know how to recompose my data tree.
i would like to put hitch first line on a new first path and hitch second on a second new path...
I am sure it will be very quick but I don't know how to do it.
Hello Gaëtan, it's difficult to help you without having some more details on your actual definition. If you want to deepen into trees and how to use them, see the Grasshopper Primer second edition at page 36. In general, you could consider TreeItem, ListItem, and Flatten as being some keywords in what you are trying to achieve.