OK, now I can answer my own question and maybe still help the OP.
If (and only if) you have generated a time table, you can get an overview for Teacher/Students/Rooms from the "Timetable" menu.
Here you have a nice interface to quickly unlock/lock activities.
My problem was, that I had to reschedule a teacher to another day of the week after I produced the initial time table.
After changing the teacher's availability I couldn't re-generate the time table any longer,
because the activity was locked on the wrong day. Because I just opened last week's .fet file I didn't have a valid time table either.
So, this is a perfect way to lock yourself out! ;-)
Cheers!
If (and only if) you have generated a time table, you can get an overview for Teacher/Students/Rooms from the "Timetable" menu.
Here you have a nice interface to quickly unlock/lock activities.
My problem was, that I had to reschedule a teacher to another day of the week after I produced the initial time table.
After changing the teacher's availability I couldn't re-generate the time table any longer,
because the activity was locked on the wrong day. Because I just opened last week's .fet file I didn't have a valid time table either.
So, this is a perfect way to lock yourself out! ;-)
Cheers!
