Is there a way to control the order that the lessons appear on the printout of the timetable? It seems to be random and I would like to control it
I think it is in the order of the activities in the activities list, but Volker knows better. There is no way to control this order, but I'll add your suggestion in the TODO list.
If you use FET normally, it is the order of the ID-s of the activities.
In normal case the is only a single subject, so no need to order.
If you add a same starting time constraint, then the "normal"/"default" activity comes first and the others followed (i think by id).
You can select/change the order only if you print subjects timetables or all activities timetables if you print with TiTiTo. There you can order by students name, teacher name or room name. So if you need a subjects or all activites timetable, just download TiTiTo and print/export from there.