(I can't check at the moment, but from what I remember...)
There is a 'Text' option on the menu bar at the top that will appear if you're editing a field.
If you see it and it's grayed-out you can highlight the the part of the field that you'd like to change and the menu option should become clickable.
There are a few default options in the menu but choosing 'Text' > 'Font' lets you pick from anything that's available in the deck.
Multiple fonts for more characters and symbols is a very good idea. Thank you for sharing that!