Has the ability to set up HR Zones been removed? I can't find it in Connect web or the app. Or is it just that I've changed to a Bryton HRM (because the Garmin ones are overpriced and don't last)? The Edge 830 head unit seems to pass on actual bpm data to Strava OK, but the HR Zone readout on the head unit tries to tell me I'm in Zone 1 or Zone 2 ALL THE TIME.