The \notereferenceposition command is always used in conjunction with the
\endnoteformat (\enf) command, and will determine whether the endnote reference
number within the text of the endnotes is a superscript number or not. The
format for the \notereferenceposition command is:
\endnoteformat{
\notereferenceposition{xx}
}
Where "xx" is either "up" or "down". \notereferenceposition{up} will give
superscript numbers for the endnote reference numbers in the notes.
\notereferenceposition{down} will give print the endnote reference numbers in
the notes on the baseline.