Deactivate rules effortlessly in an inherited Quality Profile

[michha (Michael)]

According to SONAR-20355 - Enable Quality Profile Administrators to deactivate rule in child Quality Profile this should also be a available in SonarQube 10.3 but it doesnt seem so:

What am I missing?

Update:

[Bug] sonar.qualityProfiles.allowDisableInheritedRules is non-default after upgrade - SonarQube - Sonar Community (sonarsource.com)