Apple Watch indoor workouts.

Can apple add the ability to add distance to indoor workouts recorded from an Apple Watch? Cycling and rowing specifically but I am sure there are others. My equipment tracks my distance. So if I run the workouts on my watch so I can get heart rate and calories and all that, why can’t I go in and add the distance manually after? Seems like it should be a simple thing to be able to do without downloading and running separate apps and all sorts of frustration.