M repeat (menu) key and indicator, N chase (sub menu) key and indicator, O loc 1 (memo 1) key – Tascam DA-78HR User Manual
Page 15: P loc 2 (memo 2) key, Q mixdown (level/pan) key and indicator, 4 track controls, R rec function keys and indicators, S peak meters, 5 rear panel features, T remote in/sync in
