There is quite a bit that’s not documented. I knew for example that the two function add_options_page and add_options_sub_page actually both end up calling the same function in the end because I dig around in the code a bit, and I needed to understand how these work to build my plugin.
What bothers me, like I said, is that I completely missed this option when I was adding the autoload option.
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users