[Daytona_550]

I've been searching here and on the F80/82 track-related forum but no luck. Anyone know or have a link to step-by-step on how to set up a Custom PID on Harry's LapTimer? I looked at the app's documentation but can't make heads or tails out of it. My goal is to record coolant temp along with the normal lap data, and be able to see it later in the "Lap Analysis" menu.

Thanks for any help!