> For the complete documentation index, see [llms.txt](https://docs.besmart.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.besmart.software/design-data-management-and-exchange/smart-browser/add-subcategories.md).

# Add Subcategories

This command can be used when a family file (.rfa) is open in Revit.

**Add Subcategories** will prompt a new dialogue box to choose the subcategory list file. The list of subcategories comes from an external text file, which can be easily modified in accordance with company or country standards. The default list of subcategories comes from ANZRS. To see only the subcategories available for the current family category, remove the tick mark from 'Show All Categories'.

![](/files/Rl06qsKqd82n7jgPxqet)

By clicking **File**, you can select a different file of Subcategories. 

![](/files/5csyESiCQ5SJHbg3EEiI)

After selecting the required subcategories and clicking OK, the data will be added to the family, where it can easily be assigned to solids.

![](/files/AXhCRVtEDpBnCjkDO0L9)


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# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.besmart.software/design-data-management-and-exchange/smart-browser/add-subcategories.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.