Copy a workout to edit

It would be nice to have a feature "copy workout", so I would be able to adjust and config a workout plan.

Example: I would like to swim a workout I've done, but adjusting a few details (ex: more distance for warm up)... so, instead of making a whole new workout, it would be nice to be able to copy the workout, rename it and then adjust it.

This would save user's time when creating and adjusting workouts.