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

       /PARAMETERS=(parameter[,...])

    Provides the values of up to eight optional parameters (equated
    to the symbols P1 to P8, respectively, for each command procedure
    in the job). The symbols are local to the specified command
    procedure.

    Commas (,)  separate individual parameters. If you specify only
    one parameter, you can omit the parentheses.

    If the parameter contains spaces, special characters, or
    lowercase characters, enclose it in quotation marks. The size
    of the parameter can be from 1 to 255 characters.