Feature request: % based offset for different power sources

[mcneese.chad]

This request seems very similar.

[Feature Request] Ability to manually adjust the power reporting of a source device and particularly a trainer

My wahoo kicker trainer has a very predictable power offset compared to the “true” power that my power meter(s) report. While power-match works well when the bike with the power meter is used, it would be immensely helpful to be able to use this correction when a bike without the power meter is on the trainer. There are various use case for this, e.g. permanent bike on the trainer, one type of bike with PM and the other without (for those that do road and mountain or TT). In my case it would re…