Force Accidental (only flats & sharps) — Logic Pro keyboard command of the day

  Force Accidental (only flats & sharps)

Forces the display of the accidental for the selected note(s). Natural notes will not have the natural accidental shown.

Change how accidentals appear in a score in Logic Pro — Apple Support

Choose Functions > Note Attributes > Accidentals from the Score Editor menu bar, then choose one of the following display options: