Add "complimentary" sharps and flats

[Jellyall]

Hi Bill,
I might have misunderstood you but I think you want to see 'accidentals'.
In the "Format" menu, select "Display Pitch names in note heads".
Tick the "Show Accidentals" and, probably, you want to unselect all the listed staves.
And click okay.
Now you'll see sharp/flat/natural signs in brackets as reminders.
Hope this helps.
Richard