> For the complete documentation index, see [llms.txt](https://support.who-umc.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.who-umc.org/vigilyze/searching-and-filtering/search-by-custom-groups.md).

# Search by Custom groups

Custom groups allow organisations to create customised groups that can be used as filters for:

* Reactions
* Drugs

See Settings and customisation: Custom groups to create new custom groups

#### To search using a custom group:

1. Click **Filter**.
2. Select the appropriate section: Drug or Reaction.
3. Click **Custom groups**. A list of available custom groups appear.
4. Select one or more custom groups.

Search results are filtered by the selected custom groups.


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