Why I can not use channels 9 and 10 ? HobbyKing's- HKPilot 32 Controller

Why I can not use channels 9 and 10?
I try to use the channels 9 and 10 of the transmitter with the HobbyKing’s- HKPilot 32 Controller , but does not work. why?

Please use the appropriate category… thanks

What exactly does not work?