I use my FR and Edge GPS on 3 different bikes, a stationary bike, when I run or when I go to the gym.
I dont use a cadence sensor on my MTB therefore, when I use it with it the field for cadence is empty. Neither the cadence field is useful when I run.
In the case of the Edge 800, the maps are not useful indoors.
The Pace field is not useful on the bike and so on, there are many combinations were the configured field to be displayed is not usefull in given cases.
In order to all fields to be usefulll I would have to reconfigure the display screens to use only the ones displaying data every time I change sports or bike.
It would be nice to be able to configure the screens according to the bike and sport selected so no empty or unusefull fields are displayed for each case.