Library /sys$common/syshlp/pca$help.hlb EDIT, Parameters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 module-name

    Positions the editor in the specified module. When you specify a
    module, you must also specify a line number.

 line-number

    Positions the editor at the specified line number. If you specify
    a line-number without a module-name, the module is assumed to be
    the module at which you are currently positioned in the PLOT or
    TABULATE source display. If you do not specify line-number, the
    editor is positioned at the line at the center of the current
    page of PLOT or TABULATE output.