# Need help with a filter problem

**URL:** <https://community.glideapps.com/t/need-help-with-a-filter-problem/30658>\
**Category:** Ask for Help\
**Created:** [August 18, 2021, 10:07pm UTC](https://community.glideapps.com/t/need-help-with-a-filter-problem/30658 "2021-08-18T22:07:33Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![Darren\_Murphy](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/darren_murphy/32/47326_2.png) [@Darren\_Murphy](https://community.glideapps.com/u/Darren_Murphy)\
**Post date:** [August 19, 2021, 1:21pm UTC](https://community.glideapps.com/t/need-help-with-a-filter-problem/30658/12 "2021-08-19T13:21:33Z")

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> [@nikatronic](#):
>
> Will the trebuchet method allow me to collect the names automatically?

Not automatically, but you could set it up so that users could add/remove themselves from projects - which is what you want, yes?

You won’t find anything in the Glide docs about trebuchet, as it’s an advanced technique developed by a couple of our community heroes - @Robert_Petitto & @Lucas_Pires. It takes a bit to get your head around it, but if you’re willing to learn then it opens a lot of doors.

Watch this video for a good introduction:

> [@Shared "User Specific" Lists Between Users!](https://community.glideapps.com/t/shared-user-specific-lists-between-users/24747/3):
>
> Here’s the tutorial. Note—this is an Advanced concept in Glide…not for the faint of heart muscle! [[Glide: The Trebuchet Method is UNREAL] ](https://www.youtube.com/watch?v=jhJ8jMEoy3o)

And there are one or two other tutorials available, you’ll find those by searching.

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