At http://processwire.com/talk/topic/545-progress-on-processwire-22-and-overview-of-multi-language-support/ I read that I can add fields to the language template, but can't find anywhere to do that. Has this documentation been superseded? How is it possible to add fields to a language? I want to add image (for a flag) and contact info.
Also, why can't I edit a language from the list at Setup > Languages? I can only view the list or add a new language.