As to names and editing, I ended up not needing it as I decided I really did not need much beyond watts. But… I think that feature has been added, see changes here:
https://community.iotawatt.com/t/02-05-06-alpha-and-beta-auto-update/1862
I’m a bit confused by the other aspect. The field names come from what is in field-key, so if you want the field name to be the name you put into the output, you can use $name in the field-key. That ends up being the thing you type in during the setup. I think @overeasy had something similar to that, putting all CT’s in as fields so you get one row with lots of fields.