Hi,
this a Feature request:
Would be great/a killer feature, t have the ability to customize the screen for each type of Training Independently and for all metrics of the screen/dashboard and not only for one as of now. This because each training type requires different metrics for a perfect training assistant - in my opinion.
E.g. if you ride your mountainbike, it might be more intersting to see current high and heartrate concurrent without using the digital crown to switch.
Short: dashboards as you can customize like on garmin devices!!
Thank you much getting this feature soon! 
Best regards
FuXX