Picked up a Jelly Comb bluetooth keyboard the other day and, so far, it's working well. Switching AFB on and off is now easy and convenient whereas before I had to stand up and then crouch to get to the switch in the cab. So I've been playing about to check which keys do what but my old keyboard list shows F7/F8 to change the destination boards and I can't seem to get this to work (I can go to the cab control and click on the up / down arrows but a keyboard shortcut would be easier). Anyone got any ideas?