Hi Andrea,
If you’ve managed to get the workout to show up on the Garmin you should be good. Go back into the Garmin Connect app and find the workout.
Select the one you want to push and then hit the transfer icon.
Next up, make sure the your Garmin is connected to your phone and the indoor trainer is added as a sensor. Sync the garmin. Then select ‘indoor trainer’ from the ‘training’ section on your Garmin head unit.
Select 'follow a workout. Then pick your workout.
I just tried another one and it kept wanting me to hit the lap button as the power went up. It was a mess with that workout, although I don’t really know how to use the outdoor workout feature yet. (MTB rider).
It definately shows potential if you could push normal indoor rides to Garmin Connect.