How to have the staging environment as a subdmonain of the mapped domain?

I use some paid plugins that come with a license that allows the plugin to be used on all subdomains of a domain. May site is live and mapped to a different domain than xxx.wpmudev.host. Now when I reset the staging to sync it with live, I get an error message that my plugin is not licensed, as it is now running under staging.junkers.wpmudev.host. If there was a way to make the staging domain staging.junkers.de I would have no license issues. Any idea how to solve this?