# Trying to create self-referential formula and/or tree view of self-related Dataset

**URL:** <https://community.fibery.io/t/trying-to-create-self-referential-formula-and-or-tree-view-of-self-related-dataset/2466>\
**Category:** Get Help\
**Created:** [January 29, 2022, 11:34pm UTC](https://community.fibery.io/t/trying-to-create-self-referential-formula-and-or-tree-view-of-self-related-dataset/2466 "2022-01-29T23:34:20Z")\
**Posts on this page:** 1\
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**Author:** ![Chr1sG](https://sea2.discourse-cdn.com/flex020/user_avatar/community.fibery.io/chr1sg/32/3941_2.png) [@Chr1sG](https://community.fibery.io/u/Chr1sG)\
**Post date:** [January 30, 2022, 8:50am UTC](https://community.fibery.io/t/trying-to-create-self-referential-formula-and-or-tree-view-of-self-related-dataset/2466/5 "2022-01-30T08:50:46Z")

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> [@\[DONE\] Many-to-many relationships should be usable for levels in lists](https://community.fibery.io/t/many-to-many-relationships-should-be-usable-for-levels-in-lists/1624):
>
> I have [Product] \*------\* [Feature]. (Features belong to products, but some features span multiple products; e.g. “2FA” is a feature of both the backend CMS and of the mobile app). There is also a [Product] ----\* [Bug]. (A product can have bugs.) When I create a list, I can add Bug as a second level, but not Feature. Why not?

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