Nowhere in the manual does it tell you that the Treadmill App is under the general "Gym" app category on your Vivoactive 6. You really need to let people know!!! I spent hours looking for it. I googled, asked Garmin support, YouTubed, and could not get a straight answer. Finally I went to "Gym" on my phone, and underneath were listed many sub-Apps, including Treadmill and Indoor Walking. On the previous Vivoactive 4, these were independent of any "Gym" category. Please let people know. It was very frustrating.