Fine grain access for user management

Hi,
Is it possible to configure Keycloak in a way there are groups of users and dedicated admins to manage each of the group with view limited only to particular group?
I have enabled experimental authorization feature and tried to configure such a simple scenario, but when log-in with limited admin account and query all users from UI it shows me all existing users for all existing groups. Not just users/groups this admin is going to administer.

Thanks,
Vadim