LATCHING DRUM ROLLS
While a drum roll is playing, you can latch the roll. When a drum roll is latched, it will
continue to play, even when leaving ROLL mode.
You can add additional instruments or remove instruments from the drum roll while the roll
is latched, by clicking the buttons of the mini keyboard.
To latch the roll, click the FUNCTION button. To unlatch the roll, click the FUNCTION
button again.