Erwin B
Erwin B
Having the Same issue, multiple entities are reporting " no longer has a state class. See attachement 
UPDATE: in my case I also hit "delete" and restarted HA, the messages disappeared. The entities related to the devices are still available, so no info was deleted from what...
Would be a greate feature! Also wanting to move stuff around in the scean by the press of a button. Due to missing this option, it is currenly not posible.
Found it! Got it working in a few seconds that way! GREAT!