Refoss EM16 entity (channel) naming

Just installed Refoss integration (EM16), its working great. One thing I would like to change is to rename channels (in the same way that you can do on the em16 device with the phone app). How can I change for example A2 to be something that makes sense in all the stats and graphs by having them show actual use as in “Heater”?

Renaming all the entities per channel seems painful.

Maybe I am looking at this from the wrong angle but can’t find anyone discussing this.

Thanks!