I agree with these comments re: ACF’s field group builder interface. But, though I’ve found no GUI alternative, I’ve started using ACF5’s new local JSON feature to build out my field groups and found it to be a great alternate option. Especially if you use a JSON editor to keep everything neat and orderly! Still, I’d love to see a better GUI as the ability to quickly build, duplicate, and iterate field groups is, I’d imagine, a huge priority for most developers!
