# List flattern

**URL:** <https://forum.dynamobim.com/t/list-flattern/110778>\
**Category:** Revit\
**Tags:** dynamo\
**Created:** [June 17, 2025, 6:38am UTC](https://forum.dynamobim.com/t/list-flattern/110778 "2025-06-17T06:38:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![lovro.sibenik](https://avatars.discourse-cdn.com/v4/letter/l/f04885/32.png) [@lovro.sibenik](https://forum.dynamobim.com/u/lovro.sibenik)\
**Post date:** [June 17, 2025, 6:38am UTC](https://forum.dynamobim.com/t/list-flattern/110778/1 "2025-06-17T06:38:17Z")

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Hi everyone, how can I flatten the lists from this picture so I get everything from only the first sublist? I want all of my solids to be in 0 list (first sublist). The idea should work for all top sublists.

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/8/4/84072d16e6a48062cc3947d98bd03629ca8e243f.png)

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<div class="post-metadata">

**Author:** ![sovitek](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/sovitek/32/116237_2.png) [@sovitek](https://forum.dynamobim.com/u/sovitek)\
**Post date:** [June 17, 2025, 7:16am UTC](https://forum.dynamobim.com/t/list-flattern/110778/2 "2025-06-17T07:16:17Z")

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Hi @lovro.sibenik try list flatten with @L3

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<div class="post-metadata">

**Author:** ![Mike.Buttery](https://avatars.discourse-cdn.com/v4/letter/m/b19c9b/32.png) [@Mike.Buttery](https://forum.dynamobim.com/u/Mike.Buttery)\
**Post date:** [June 17, 2025, 7:46am UTC](https://forum.dynamobim.com/t/list-flattern/110778/3 "2025-06-17T07:46:48Z")

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Use the list levels to do something like this?

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/9/c/9c89af7259aa18b9221d07838d5fc936379a3cbc.png)