Firebird 5.0.0 User trusted authentication on Windows checking user specific group

[Mustafa]

Hey everyone,

i want to set up User trusted authentication on our Windows hosted Firebird server. For this purpose i have followed this guide:
https://ib-aid.com/download/docs/fb5migrationguide.html#_setting_up_trusted_authentication

On the second step it verifies any user trying to connect to the database, which isnt what i want.
I want to check if the user belongs to a specific Windows group before letting him in.

Now this works for my user specifically:
create global mapping dev
using plugin win_sspi
from user "domain\MyName"
to User Sysdba;

2 Problems here:

1. the same query doesnt work with:
   create global mapping dev
   using plugin win_sspi
   from user "domain\MyName"
   to Role my_own_role;

So its not possible to assign that user to my own created role.

2. a mapping that automatically assigns users from my specified group within our domain to a specific role.
   So we might have a active directory group called Devs and we want to let every member of Devs inside.
   I've tried a lot but i imagine something like a wildcard or specifying the group working:

Wildcard:
CREATE Global MAPPING dev
USING PLUGIN WIN_SSPI
FROM User "DN%"
TO ROLE my_own_role;

or

Group:
create global mapping trusted_auth
using plugin win_sspi
from Group "dn\Developer_group"
to ROLE my_own_role;

Is it even possible to create mapping that automatically assigns every user within a certain active directory group to a role?

Best regards,

Mustafa