You can insert a footnote or endnote in Word from the References tab of the ribbon. Both serve as supplemental information to your document.

Learn how to add references for research papers, journal articles, books, and other sources in Microsoft Word.

Position the cursor at the end of the document (you’ll probably add a new page to your document). In the Insert group (still on the References tab), click Insert Index.

Fields that don't update automatically pose a problem with many users because they don't remember to update them manually. When you need this functionality, use this VBA procedure.