I assume the custom entity_ids you create are stored in home-assistant_v2.db. Firstly is this assumption correct?
Secondly is there a way to mass change them rather than going one by one:
I spent a good part of last night changing 30+ sensors and then changing the relating scripts, automations and intent_scripts.
I know I can back up the .db but after a few months it gets massive and I’ve had my sd currupt on me in the past and I couldn’t just pop my back up .db file in (it didn’t work).
I take it the only way is to create a back up through the Front End, but again this can get massive over time.
So if there is a way to change them in bulk could you advise how? Also I have about 20 more I need to do (all Xiaomi sensors / switches with horrible names).