Hello,

The Header builder is a separate functionality and it is separated from the Theme Settings for better convenience.

Please check this manual to find the option on how to make the row/the whole header sticky: https://xtemos.com/docs-topic/header-rows-and-columns-configuration/ and https://xtemos.com/docs-topic/global-header-settings/

If you have any questions please feel free to contact us.

Best Regards