See Changing the position of a note icon.
Footnote numbers are normally put after the text in question. In Logos we have to put the equivalent (the note icon) before the text, which often feels very illogical. It's usually after I've read the text that I know whether I want to check out the note, so having the icon before means that both my eyes and the cursor have to be moved back and forth, back and forth.
Plus it would look better after, and disturb the reading less.
Maybe in the same popup where we can change the icon colour etc?