The .FLAGS SUBINDEX and .NO FLAGS SUBINDEX commands turn on and
    turn off recognition of the Subindex flag (>). You can also
    use the .FLAGS SUBINDEX command to change the Subindex flag to
    another character. If you enter .NO FLAGS SUBINDEX, the command
    will cause a right angle bracket (>) to be printed as part of
    your indexed text, instead of causing subindexing.

    Formats

      .FLAGS SUBINDEX  [k]

      .NO FLAGS SUBINDEX

    Abreviated formats

      .FL SUBINDEX  [k]

      .NFL SUBINDEX