There probably aren't that many ram locations that get modified by the user. AFRwb, maybe the MAP3bar and MAP4bar if they have specific calibration data.
I'm sure not as simple as it sounds, but maybe a way to simply "userlock" a gauge setting? That would prevent the gauge settings from being overwritten during an update/download?
For me i think i had mine setup correctly at one time, but can't remember exactly when i got defaulted. I looked on my laptop, and it was the default now also. I had been using the droid version exclusively since it is much more convenient.
The "display range" only has to do with the gauge output, and nothing to do with the values the ecu sees, correct?