Setting Primary Wearable/Training Device

I have a Fenix 6 Pro and an Edge 1030 and wanted to take advantage of Training Status 2.0 and saw that DC Rainmaker suggested in this case to set the Fenix 6 as the primary wearable and training device, but I haven't been able to figure out how to make those options in settings. According to this help page, I should be able to do it in the settings of Garmin Connect Mobile, but those settings aren't available in the list. Anyone know if there's something else I should be looking for?