Generalise Chapters Visibility option

Now that the PWP 3 brings various tabs, the Chapters Visibility option in the Publisher’s Expert Options has become too limiting IMHO. How about turning it into an Expand Player Tab menu with None, Chapters, Info, etc. entries?

Besides the obvious advantage of customisability, podcasters could then simplify the episode post template a bit, by omitting the Twig code that would render the info corresponding to the expanded player tab.