> For the complete documentation index, see [llms.txt](https://docs.tachyon.video/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tachyon.video/user-guide/4.-programming-a-show/timeline-editor/timeline-free-run.md).

# Timeline Free Run

The Free Run function will **activate media playback** when the Playhead comes into contact with a Media Clip, **even if the playback transport function is not enabled**. Once activated, the Free Run function will affect the behavior of every Media Clip in the Timeline.

![](https://2251001579-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Ftachyon-documentation%2F-MZP5eXP7wwegppXVadB%2F-MZP6QYgDoynI4vFAc9A%2F0.png?generation=1619640826426116\&alt=media)

## Activate Free Run

* Click on the **`Free Run`** toggle located in the Timeline Editor window section to enable Timeline Free Run.

![](https://2251001579-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Ftachyon-documentation%2F-MZP5eXP7wwegppXVadB%2F-MZP6QYhUZlYQyBo5FIl%2F1.png?generation=1619640826418829\&alt=media)

{% hint style="info" %}
When used on an entire Timeline, this option is very useful **as a creation tool**. 
{% endhint %}

{% hint style="warning" %}
Free Run should NOT be used in a show.
{% endhint %}