How do I have timetables for separate classes when the columns to be filled for the timetable are just singular like that? I have tried but after testings the timetable columns to dates the table does not show.
In terms of rankings, not Gibbon does not support this (as a teacher I am deeply opposed to rankings as a motivation tool, and so I have never built it in). It is possible you might find a programmer willing to add it to the core, who can then push it to our v12 dev branch.