# Pathmapper/ list structure

**URL:** <https://discourse.mcneel.com/t/pathmapper-list-structure/98538>\
**Category:** Grasshopper\
**Created:** [March 21, 2020, 10:19pm UTC](https://discourse.mcneel.com/t/pathmapper-list-structure/98538 "2020-03-21T22:19:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jebbesherbert](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/jebbesherbert/32/208863_2.png) [@jebbesherbert](https://discourse.mcneel.com/u/jebbesherbert)\
**Post date:** [March 21, 2020, 10:19pm UTC](https://discourse.mcneel.com/t/pathmapper-list-structure/98538/1 "2020-03-21T22:19:21Z")

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I have a 40+ list item going into an entwine. Is there a better way to do this without using the pathmapper? or how do I do it with the pathmapper? normally flip matrix would work just fine but my data is to complex for that.

 ![HELP!](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/8/f/8f3563c5032371748fc571a95fbc74455523e942.jpeg) [help!.gh](https://discourse.mcneel.com/uploads/short-url/6KhtXyte001W54BHUsaWKvex045.gh) (36.9 KB)

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**Author:** ![maje90](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/maje90/32/762888_2.png) [@maje90](https://discourse.mcneel.com/u/maje90)\
**Post date:** [March 21, 2020, 10:58pm UTC](https://discourse.mcneel.com/t/pathmapper-list-structure/98538/2 "2020-03-21T22:58:22Z")

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Can you explain what you want to do?  
On your initial tree the branches are all long 12 items, and yet you used List Item up to “+40” , with Wrap=false … all those outputs are empty, nulls. It really doesn’t make sense.

[help\_re.gh](https://discourse.mcneel.com/uploads/short-url/4kJDLKZ3kh0rF5riPOrbSP5FMDx.gh) (26.8 KB)