/sys$common/syshlp/helplib.hlb CMS, REVIEW, GENERATION, Qualifiers, /GENERATION[=generation-expression]  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Specifies the generation of the element with which to associate
    the review remark. If you omit /GENERATION, CMS uses the most
    recently created generation with a review pending. You specify
    this qualifier only if more than one generation of an element is
    under review.