While looking for more backup information I stumbled upon this link. I think you could
create one.
https://www.centos.org/docs/5/html/CDS/ag/8.0/Managing_Access_Control-Cre...
Also, You might try looking here, as it says they can be listed.
https://www.centos.org/docs/5/html/CDS/ag/8.0/Managing_Access_Control-Vie...
Job