Reschedule unscheduled lessons in the unit planner
When a lesson is unscheduled, the lesson is marked as Unscheduled in the Unit Planner.
From the Lessons menu, choose Unit Planner.
Select the subject with unscheduled lessons.
Select the lesson you want to reschedule.
Click Options and select Move Lesson.
On the Move Lesson page, select the date you want to move the lesson to.
Select the class that the lesson belongs to and click Move.