how can I use LDAP groups in authzpolicy.conf file of fine grained permission?

[falkb]

Can you describe on your wiki page if it's possible, and if yes, how it's possible.

I played around but can't get it work to use those LDAP groups (starting with '@') in my authzpolicy.conf, anyway it has no effect or leads to errors... In the end I want to restrict wiki page access by using user groups defined via LDAP since I don't want to configure again what LDAP has set at first anyway.