I think that happens if you install a major (can't think of a better way to put it) part to a car, such as the staged engine upgrades or weight reduction.
Weight reduction stage, engine stage, and turbo will always change on ALL settings when changed on one. You can and should put a note on each sheet, such as add eng stg 3, or remove. That's what I do, other settings stay with each sheet.
The transmission only changes if the RPM changes with the change of parts. In reference to the OP, that would be Engine upgrades only IIRC.
I thought the turbo stayed with the tab did that get "updated"?
If I recall correctlyIIRC?