Yes he is using the pedal footswitch to go through the registrations that he has set up, (Pretty much all organ players do it if they have that facility on board and most instruments from the 80s on do) and if you look closely at the display you will see the registration numbers increasing as well as the lights between the manuals changing..
Bill
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English Riviera:
Live entertainment, Real Ale, Great Scenery, Great Beaches, why would anyone want to live anywhere else (I�m definitely staying put).