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

       /OUTPUT=file-spec

    This qualifier specifies the FDL file in which to place the
    definition from the current session.

    If you omit the /OUTPUT qualifier, the output FDL file will have
    the same name and file type as the input file, with a version
    number that is one higher than the highest existing version of
    the file.

    The default file type is .FDL.

    Example

  $ EDIT/FDL/OUTPUT=NEWINDEX INDEX

    Begins a session in which the contents of INDEX.FDL are read into
    the FDL editor and can then be modified. NEWINDEX.FDL is created;
    INDEX.FDL is not changed.