VMS Help DSR, DSR Commands, .ENTRY  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The .ENTRY command creates an index entry without a page number
    reference. It is usually used for "See..." or "See also..." index
    entries.

    Format

      .ENTRY  topic [>subtopic1... >subtopicn]

    Abreviated format

      .Y  topic [>subtopic1... >subtopicn]