Using training bike connected to home trainer, i miss some data i would like to add on personnal data screens: navigation data (remaining time and distance), altitude data (slope percentage), although i can follow route. When i follow route, some data screens are automatically added (including data i want to use), but I can not alter it or use previously listed data on personnal data screen.
It seems garmin consider some data as useless for inner activities although we can follow route and concretely need it.