Untitled attachment https://cdn.fosstodon.org/media_attachments/files/112/993/088/948/351/359/original/975ac27ddda78003.png
@onlytina @LibreOfficeDE You say adding a page number doesn't work "with a single menu item", but that's incorrect. You can go to "Insert > Page Number..." in the menu, and then in the dialog that appears, click "OK", as this screenshot shows.