VPN SLL - Users/Group AD - User group network

Hi,

I've setup an ssl vpn, it's working fine. I left the "Automatic Firewall rules" and build my own rules.

I have all kind of users connecting to the ssl vpn. The users are backend users from an AD. There are from different departement and I wish to set the rules for each group and not to have to define the fw rules for each user as I'm doing now.

How can I set rules using AD group, or at least local group with backend users ? I tried with backend group, it's not working, and I tried with a local group with backend user in it without more success.

What the best way to manage this ?

Thank you