> For the complete documentation index, see [llms.txt](https://thekeymachine.gitbook.io/base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://thekeymachine.gitbook.io/base/the-toolbar/animation-tools/select-hierarchy.md).
# Select hierarchy
This tool allows you to quickly select chains of controls, for example, fingers of a hand, arms, tail controls... To do this, you only need to select the upper controls and the tool will automatically select the lower or child controls.
{% hint style="warning" %}
Unfortunately, some rigs are not created in the best way or following standards, so this tool may fail on certain occasions.
{% endhint %}
---
# Agent Instructions
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```
GET https://thekeymachine.gitbook.io/base/the-toolbar/animation-tools/select-hierarchy.md?ask=&goal=
```
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