Here's the soultion I've found. It's clumsy but seems to work.1. Add the Variant2. Click "Save"3. An error message will show up. Ignore it and ...4. Reload the page. 5. Each variant will now have SKUs that, apparently, the system automatically assign...

"Solved." Not.I was getting the "Option value already exists" error when trying to add "Unframed" as a variant to a product that already had framed options. So trying to figure out what "change it 1 by 1" is supposed to mean, I started over by adding...