I'm using TinyTerm ITX on the iPad Air to access our ERP software in Wyse60 mode. Some keys are not functioning properly, but for the most part usable. On various Bluetooth keyboards, the Fn-F1, Fn-F2, Fn-F3... keys just won't work. I tried the hardware keyboard layout "U.S. International - PC" with some success with slash commands, but not with the F1, F2, F3... keys.
I just ordered another vendor's BT Keyboard to see if this one is malfunctioning.
I know the iPad Air support F keys, because the onboard keyboard has "PC English with Fn Keys". And it works fine (except Page Up and Page Down).
It would be nice to be able to program a new hardware keyboard. Has anyone done this on the iPad Air?