Yes, this is exactly why I try to give P63 as much support as I can.
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Just updated to 1.05.
Finally, can now copy one tune sheet to another like GT5!
There is now a copy icon to the left of the three tune sheet tabs. 👍
Still seems to be no reset to default settings though.
UPDATE
So I just bought a cheap car, put tunes on all three sheets with the hope...
...that maybe a reset to default would become available once all sheets were modified.
No dice.
Well at least they gave one back one prior function with the update.