# Drilldown views

When you filter a view by a "view tag", you create a parent/child relationship between views. We display this relationship using nested views, which you can see in the side navigation menu.

<figure><img src="/files/VKaU5h4IwJbxIfZkWG3m" alt=""><figcaption></figcaption></figure>

Nested views are a simple way to build robust, specific analysis across views.

### Shortcut: Create a view from tag

When highlights are grouped by tag, you can quickly create a nested view filtered by that tag by selecting the group's action menu > Create view from tag

<figure><img src="/files/BSI35R3ABQ22UMGMRGQ9" alt=""><figcaption></figcaption></figure>

### Examples of when you might use nest views:

* **Split up large groups**: sometimes views with a lot of data can cluster into large groups. Discover more themes by drilling down into these larger groups
* **Use the assistant**: if you want the assistant to focus on a specific theme it's helpful to filter by only that theme.

Remember: As new data is added to folders, classification views can continue tagging uncategorized highlights, making nested views all the more valuable!


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