> For the complete documentation index, see [llms.txt](https://manual.xlights.org/xlights/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.xlights.org/xlights/chapters/chapter-four-set-up/set-up.md).

# Controllers

## **Controllers**

![](https://1941201815-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LZ2Jwp7mRP9HqIZtQ_h%2Fuploads%2Fgit-blob-a00f874190ee13534c2d459af50c96e816176ee9%2Fimage.png?alt=media)

The Controllers tab is used to define the locations of the Show directory and the Sub Folders, as well as to configure the setting for each controller.

![](https://1941201815-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LZ2Jwp7mRP9HqIZtQ_h%2Fuploads%2Fgit-blob-1ba73b9fd54a48abbe7b0a0f4f3df04d623a13f0%2Fimage.png?alt=media)

{% hint style="info" %}
If the Save Button is Red, There are unsaved changes.
{% endhint %}