Yes. that is right. But - after restarting my macBookPro, the Fonts for the Chord Symbol and the Chord Suffix now display, and print out, as specified. I rarely see this kind of behavior on a Mac...
In both the suffix edit and the chord symbol edit areas, I can see that I have changed the fonts. And I can close the document and then re-open and still see the new choice of font(right below the ...