A year's prep timetable, for editing

Requires permission: TimetableAdmin

Every Years 1 to 3 set on the year's timetable and every set with stored prep, each with its nights and number of pupils; the cycle's nights in order; each year group's average prep across the fortnight, and every pupil above it with the nights above that night's average. A stored set the timetable does not have is flagged rather than hidden.