We support PHP 5.3+.
Nope. Our goal is to provide developers with an elegant and expressive code syntax to build containers and fields within WordPress.
Yes. We call them Complex Fields – fields that contain other fields. You can even create complex fields with multiple sets of fields. Then, when creating a repeatable entry, you can select which set of fields to use.
Yes, you can nest the fields, at an unlimited depth. The only limit is your imagination. 🙂
Yes.
Sure, go ahead! It is completely open source.