Drag and drop timetable schedule
Time table/schedule view (5 day view of schedule and be able to organize times by drag and drop - planboard has this option and I miss it)

Good news! You can now create and manage your class schedule with our new “Schedule View” option. This allows you to see your entire schedule at once, and drag/drop to add classes or adjust times for each day. Click Go To > Classes > Schedule View to give it a try!
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David Burns commented
Creating schedules is very time consuming. It would be amazing if I could just type my class names and times into a spreadsheet and upload it. Planbook would then just auto-populate may schedule. This would save me an hour or more. The process of creating my schedule at the very beginning of the year is actually quite time consuming and frustrating as it somewhat difficult to schedule multiple classes across multiple days without missing some/making errors and having to go back and forth from "Classes" to "Plans"