There was a problem with this feature in version 4.1.0, so it was hidden. Flint needs to wait for a new version.
Beryl does not have an official firmware release, so the latest version is used. flint needs to release the official version 4.1, so it has not merged the new features yet.
Please wait about 2 or 3 weeks for the Beta version of 4.2 to arrive soon.