On 05/03/12 19:38, Michael Sweet wrote: > Flo, > > See: > > http://www.cups.org/documentation.php/policies.html > > Basically @SYSTEM is shorthand for any group listed with the SystemGroup directive. > > Thanks a lot. This is a good hint and a good link. Now I understand everything better. Stupid that I haven't found that page before. Regards, Flo.