\w option - causes the field result to be the entire paragraph number without trailing periods, regardless of the location of the REF field.
\n option - causes the field result to be the paragraph number without trailing periods. No information about prior numbered levels is displayed unless it is included as part of the current level.
\r option - inserts the paragraph number of the bookmarked paragraph in relative context, or relative to its position in the numbering scheme
Format options for numbered item references.
Specifies how the paragraph number should be displayed when referenced.