Rachio 3 - 8 zone to Rachio 3 - 12 zone

I didn’t realize I had more than 8 zones in my sprinkler system. I discovered 3 not in use. Tested and they work.
I need to replace my rachio 3 - 8 zone unit with the rachio 3 - 12 zones which is on its way.

I’d rather not have to rebuild the profile (Zone pics, S.head map, naming, etc) & info I have painstakingly created for this 8 zone unit.

It seems a transfer works for gen 2 to Gen 3 but I don’t see any threads on upgrading on Gen 3 to Gen 3 twelve
Has anybody done this successfully? Or should I start taking screen shots and plan to rebuild the whole thing over again?