When entering grades on the assignments by class page, I would like to be able to press "PageUp" and "PageDown" to scroll up and down one page at a time.

I also want to be able to use "Home" to go to the top of the spreadsheet (the first student) and "End" to go to the bottom of the spreadsheet (the last student).

Also, the arrow keys currently only scroll up and down when you get to an empty cell. The arrow keys should scroll up and down regardless of whether you have enter a grade for the student already or not. When you arrow down past the last student, the student grade table loses the focus. Arrow down on the last student name should keep the focus on the last student. (The last student's name should still be bold, the cursor should be in the box for that students grade, and the grade should be highlighted).