After 12.31 update for a few days I could see my Garmin Coach workouts alongside with my running DSW in calendar widget. As well I could see DSW prompt before starting running workout. If it was glitch - it was good one.
Now, if I have active garmin coach plan, I can check DSW only by pressing upper right button>workouts>run>DSW
It would be nice that DSW would be showing alongside garmin coach plan (if DSW prompts are turned on).