As far as I know, you won’t be able to change the type, so if you really want it to be a Light type, you’ll have to re-record manually.
That being said, being a Fireplace isn’t the end of the world.
See how some of us do edits for a generic device’s buttons here.
You’ll note that even after my edits, I don’t have new icons (@merck from Bond calls them ‘slugs’ I believe), nor new groupings / headers; I do, however, have new text labels under the buttons - the best compromise I’ve found.
Most of those examples were through Unix or Windows - there may be slight differences in Terminal under Mac OS, particularly as regards " vs ’ around strings of data.