VMS Help CMS, MODIFY, GENERATION, Example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    CMS> MODIFY GENERATION/GENERATION=5/REMARK="Obsolete"
    _Element expression: SPEC.TXT
    _Remark: Marked obsolete
    %CMS-S-MODIFIED, generation 5 modified

      This command specifies a new remark to be substituted for the
      creation remark of generation 5 of element SPEC.TXT. You must
      also specify the element expression, and its associated remark,
      which is logged in the history file.