/sys$common/syshlp/helplib.hlb TN3270, Qualifiers, /STATUS  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /STATUS=state

    Optional. Default: AUTOMATIC.

    Determines how the status line operates during your session.
    Specify one of the following:

    AUTOMATIC       Status line is displayed.

                    The status line is disabled automatically if the
                    remote host writes data to the area under the
                    status line or you type in that space.

                    The status line is restored automatically when
                    the data is erased.
    ON              Status line is always displayed.
    OFF             Status line is not displayed.

    To toggle between ON and OFF, invoke the STATUS function.