/sys$common/syshlp/helplib.hlb SET, AUDIT, Qualifiers, /CLASS  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /CLASS=class

    Specifies the class of the object whose auditing attributes are
    to be modified. If /CLASS is not specified, the command assumes
    the class is FILE. Specify one of the following keywords with the
    /CLASS qualifier:

       CAPABILITY
       COMMON_EVENT_CLUSTER
       DEVICE
       FILE
       GROUP_GLOBAL_SECTION
       LOGICAL_NAME_TABLE
       QUEUE
       RESOURCE_DOMAIN
       SECURITY_CLASS
       SYSTEM_GLOBAL_SECTION
       VOLUME