I managed to run my timetable. Hallelujah and it took less than 60 seconds! New question now:
Our junior students have an assessment slot once a week for a double lesson - always on a Tuesday lessons 1 and 2; our senior students have 2 assessment double lesson slots a week - Tuesday lessons 1 and 2 and Friday lessons 1 and 2. And then we have our community meeting / assembly on a Friday last lesson.
How would I go about ensuring that those assessment slots are left blank? Do I just block out 2 consecutive lessons and not being available on the timetable for everybody on a Tuesday, and the last lesson in Friday, and then I presume I go to the senior students subject packages and make constraints blocking them from having lessons in lessons 1 and 2 on Friday as well? My number of allocated lessons is correct for this to happen.
Hello.
If I understand correctly your problem, which seems to be that you need to have some time slots "blank (i.e. without activities), you simply use the dialog "All students' not available times". You should make all the junior students years not available on Tuesday 1st and 2nd hour (time slot) and all the senior students years not available on Tuesday and Friday 1st and 2nd hour (time slot). I am not sure what this "community meeting/assembly is (on Friday last lesson). If you mean that ALL students should have this last hour on Friday blank, you just use again the same dialog, and make ALL the years of your institution not available for Friday last hour. I hope this helps.
Vangelis.
hm.. I think this variant is fine for teachers.
But for students it is maybe better to add an activity with the preferred time, so students can see the activity.