Preasure settings keys or bindings

[Normandee]

Hi there to ALL

Is there anybody how could guide me to the correct Hotas Warthog Bindings for the air pressure buttons or even the correct switches to use as i am always receiving warnings about the air pressure, I have a feeling i am not binding the correct switches or even the keyboard bindings would be good if i am pointed in the right Direction.

Thanks in Advance for any help

Regards

Norman