Library /sys$common/syshlp/lse$clihelp.hlb DEFINE, KEY, Qualifiers, /DIALOG  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Specifies that a dialog box should be used to prompt the user
    for parameters and qualifier values. The command parameters are
    optional if this qualifier is specified. If command parameters
    and qualifiers are specified with the /DIALOG qualifier, the
    parameters and qualifiers are used to set the initial state of
    the dialog box.