Previous day metric for comparison

It would be great to be able to choose ‘Previous day’ instead of ‘As is’ when doing comparison (In the Compare tab). For example to see the effect of previous day trainnig (or time spent in a certain training zone) on HRV. That would also allow to use preivous day form.

Thanks!

I added that. I don’t quite understand what it is for though. I you do something cool with it please post a screenshot.