For reference, here is the related info on TR Outside Workouts:
https://support.trainerroad.com/hc/en-us/articles/360024352332-Outside-Workouts
https://support.trainerroad.com/hc/en-us/articles/4404974155675-How-to-Use-Outside-Workouts-with-Adaptive-Training
https://support.trainerroad.com/hc/en-us/articles/360028351772-Pushing-an-Outside-Workout-to-Garmin
https://support.trainerroad.com/hc/en-us/articles/360032515032-Pushing-an-Outside-Workout-to-Wahoo