On this screen, you can copy specific items from your own planbook or other teachers. Use the menus on the left side of the screen to choose items to copy and where you want those copied from. On the right side of the screen, you'll choose where you want that information copied to.
Clicking the "Lessons" drop-down button will allow you to adjust the item you are copying -
Classes - Copy classes (schedule/color/name) and lessons from previous years or other teachers.
Assessments - Copy Assessments from yourself or other teachers.
Assignments - Copy Assignments from yourself or other teachers.
Units - Copy Units from yourself or other teachers.
Students - Copy students you have set up from a previous year into a new year. You can only copy Students from yourself at this time.