The DEFINE/PROCESS_SET command assigns a symbol to a list of
    process specifications. You can then use the symbol in any
    command where a list of process specifications is allowed.

    The DEFINE/PROCESS_SET command does not verify the existence of a
    specified process. This enables you to specify processes that do
    not yet exist.

    To identify a symbol that was defined with the DEFINE/PROCESS_SET
    command, use the SHOW SYMBOL/DEFINED command. To delete a symbol
    that was defined with the DEFINE/PROCESS_SET command, use the
    DELETE command.

    Related commands:

       DELETE
       (SET,SHOW) DEFINE
       SHOW SYMBOL/DEFINED