Awesome - /config/.storage/core.entity_registry is exactly what I was looking for
Everything within the UI is way too bothersome to edit 50+ sensors at once. That’s where I would do it, if I just add one or two sensors. I use Zigbee2MQTT for a while now and just left the 0x000blabla naming untouched - which got really confusing
In the entity_registry I can just copy paste … carefully