My classes repeat every week — do I re-enter them every month?

No. A schedule is written once as a recurring pattern — weekly (optionally every other week), specific dates each month, or the nth week of each month — and its sessions are then born from that pattern up to the end date you set.

Sessions already born can still be touched one at a time: canceled for a holiday, moved to another hour, or handed to a substitute teacher. Time clashes and class capacity are checked when scheduling, not when the teacher is already standing in front of the class.