Is it possible to register jQuery and Layout fields in PHP? The documentation only shows Basic, Content, Choice, and Relational. If so what are the available options?
You can register any type of field using PHP. The best way for finding out how a field is put together is to create and example using ACF and then export it to code. I don’t think that there is a list of every option for every field type anywhere, at least not that I’ve found.