Library /sys$common/syshlp/scacp$help.hlb HELP, Parameter  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 topic

    Specifies a subject for which you want information: SCACP command
    or command plus command keyword. If you enter the HELP command
    with a command name only, such as HELP SET, SCACP displays a list
    of all of the command keywords used with the SET command.