The following steps show how to use a footnote in Word 2016 twice – using a “cross-reference”.
Word displays the Footnote and Endnote dialog box. Click the small icon at the bottom-right of the Footnotes group.
Insert your footnotes as normal, but then follow these steps: Display the References tab of the ribbon.
Select Insert Note to the foot or Insert note at the foot according to your preferences. This is usually at the beginning of a word or phrase.
Place your cursor within the document where you want the reference number for the footnote or endnote.
There are 2 main problems you may run into: To insert a single footnote is easy, but it’s a different thing when you try to insert footnotes for a multi-column page.