+1 on this. I'm currently doing couch 2 5k and it would be great to add that as a training plan. Even better would be the ability to share or search other user's custom training plans so I could potentially find an existing c25k plan instead of entering it all myself.
MrGG, I'm afraid you misunderstand what a ‘training plan’ is, in the context of this discussion thread. We aren't talking about reusable single ‘custom’ workouts (in whichever discipline) that the user can create in Garmin Connect, then send to his/her registered device, on which to execute whenever.