Most section related actions require the frontend to use alternative
strings depending on the format plugin lang file. This patch adds
overridden strings to the current setViewFormat course editor setup
object.
For legacy reasons, the course renderings uses a format setting to know
if the page is multiple sections per page or a single section per page.
This format specific dependency is not solved using a get_course_display
format method any plugin can extend.
Ferran Recio