Hi,
I cannot set heart rate zones for the new forerunner 965 in garmin connect web, I have set this watch as primary wearable, primary training device is my edge 840,
when I choose forerunner from devices I don't have any setting, only information "Use the Garmin Connect app to manage your device settings."
When I choose edge 840 the I see here heart rate zones but I can set zones only for cycling, for running the threshold box is greyed out: