Congrats on the New Bus.
I too own a Prized Liberty Coach (I may need to sell it or trade it someday) and I went thru a similar situation on my first outing. Mine is an elegant lady and not only does it have breakers for each cruise air and SMX controls, I have a touch screen on the dash which controls the on and off of the cruise airs. Breakers can be on, but if the dash switches are not on the cruise airs will not work.
My main controllers are as Magnifincet Mento Mango Mike described in the front bay ceiling - I have never been into them and don't want to.
I hope you have switches you haven't found and just need to turn them on.
Roger that!
2008 Liberty DS XL2
2023 Denali Ultimate
My 6th Prevost