@Aramond, the backspace key seemed to jump me to the next empty channel, but we guessed (Matsiyan was going from ship to ship so we could test whether the keys worked) that it was because we had set it up as the channel to Hawk, in case I’m posted elsewhere. However, he told me he ordered a wireless keyboard with a numbers pad, which should arrive tomorrow, so that should fix it, I’ll set up the numbers keys as standard. As you said, the number pad keys don’t seem to interfere with the engineering presets.
I like the idea of the mouse button, I currently use Shift for push-to-talk, but sometimes I hit Enter by mistake. It would be a trackball button though, because I hate meeses to pieces…