> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.sayduck.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Optional configuration

**Optional** is used to disable/hide a configuration from the initial load.

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/optional-viewer-view_1ewf8sb.png)

###### How to add Optional to a configuration?

To add Optional, select a Configuration and check the **Optional** box.

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/optional-platform-view_1e35wtx.png)

###### Using an empty variant

The same effect can be done by adding an empty variant as the first option. This will offer more flexibility as the empty scene does not need to be the first choice.

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/screenshot-2022-08-19-at-13551_1cthw23.png)