I have one Tuneboy key but have run Tuneboy on my desktop to bike and on my laptop to bike. Your tuner surely has a computer, so all he's gotta do is do the free download from Tuneboy's website; and you provide the key.
I can't tell ya how to hook Tuneboy up to a dyno though. My tuner has done a bunch of work with Tuneboy and just knows how to do it.
Will you be hooking Tuneboy up to the dyno? Or will you do a run, make some adjustments in Tuneboy, then do another run, make some adjustments, etc.?