Footnotes, sidenotes and endnotes are inserted into documents using the Notes panel.
Upon inserting a note:
Affinity Publisher automatically determines which reference is used to label a note, based on its position relative to other notes of the same type.
The correct serialisation is maintained when new notes are inserted, or existing notes are moved or deleted.
For example, inserting an endnote between endnotes labelled 3 and 4 will result in the references of endnotes 4 and higher to be incremented by 1, and the new endnote's reference will be 4.
The Notes panel allows you to instantly refocus the document view from a note's reference to its corresponding body, or vice versa.