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

    The .DISPLAY LEVELS command allows you to specify the form that
    sequential numbering (or lettering) of section headers will
    take. You can control the form of individual numbers within a
    section number for a header (that is, those numbers preceding
    or following a dot). This command does not change any values; it
    affects only the way the values are displayed.(See also .HEADER
    LEVEL, .NUMBER LEVEL, and .STYLE HEADERS.)

    Default Header Level Numbering

    Command            Nonchapter  Chapter n   Appendix A

    .HEADER LEVEL 1    1           n.1         A.1
    .HEADER LEVEL 2    1.1         n.1.1       A.1.1
    .HEADER LEVEL 3    1.1.1       n.1.1.1     A.1.1.1

    Format

      .DISPLAY LEVELS  [y1] [,y2]...[,y6]

    Abreviated format

      .DHL  [y1][,y2]...[,y6]

  Additional Information (explode) :

• Parameter
• Default
• Example