Library /sys$common/syshlp/uafhelp.hlb COPY, Qualifiers, /MAXACCTJOBS  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /MAXACCTJOBS=value

    Specifies the maximum number of batch, interactive, and detached
    processes that can be active at one time for all users of the
    same account. By default, a user has a maximum of 0, which
    represents an unlimited number.