Accounting inquiry

I am using freeradius to authenticate my users through my LDAP.

I'm forwarding the accounting to a central radius.

I want to include the LDAP-Group to the accounting data.

Do any know how to include this field in the accounting data ??

If any one has a similar experience to include an item (such as Class field) let me know, and I can try it with my LDAP-Group

NK