Lessons with 2 teachers - how to cancel it for just one teacher.
If you have a lesson with 2 teachers in your timetable, program understands it as co-teaching - 2 teachers teach one group of students together.
In general we don't advise you to use combined lessons during timetable creation, but rather create a timetable by using divisions and groups.
However, in Substitutions Online, if there are more teachers on the lesson, there are 2 checkboxes for canceling the lesson. There you can distinguish between cancelling entire lesson and cancelling it just for missing teacher.
However, in Substitutions Online, if there are more teachers on the lesson, in case that one of them is missing and there is no substituting teacher you can set substitution as "Without teacher" (A). It will cancel this lesson for this teacher only. In case you wish to cancel entire lesson, use "Cancelled" checkbox (B).