The .FOOTNOTE command places the text following it at the bottom
    of the current page if there is room. If there is not enough
    room on the current page for the entire footnote, DSR places the
    entire note at the bottom of the next page.

    The .END FOOTNOTE command ends the footnote and restores any
    case, fill, justify, spacing, or margin settings that you might
    have changed within the footnote.

    The right margin of the footnote will be the same as the right
    margin in effect for the document at the time the footnote is
    created. If you change the right margin of the document but
    want the right margin of all footnotes to be the same, enter the
    .RIGHT MARGIN command immediately after each .FOOTNOTE command to
    set the same right margin for each footnote.

    The left margin setting of the footnote is defaulted to 0.

    Formats

      .FOOTNOTE  [n]

      .END FOOTNOTE

    Abreviated formats

      .FN  [n]

      .EFN

1  –  Parameter

 n

    The number of lines the footnote will occupy. This argument is
    included only for compatibility with older versions of RUNOFF and
    is not necessary or recommended.