Enter lessons in spreadsheet format
I know that entering multiple assignments in a spreadsheet has already been proposed, but I'd add to that a column to do an entire lesson in a spreadsheet (include Lesson title, page numbers, etc.). By have a spreadsheet for entry, that would eliminate numerous clicks on different buttons. The "data spreadsheet" would be linked/synced to the Planbook interface so that when changes are made in the online Planbook interface, the spreadsheet data would also update. From year to year, this would be an easy way to see an entire year at a glance instead of at the most only seeing a month at at time.