A couple of things on Gradebooks:
1) when you edit and save a column in list view, it would be good if it didn't need to reload the page. If you're working on a column towards the bottom of the gradebook it means you need to scroll down and load it all again. Ideally when you press save it, the main gradebook page doesn't reload (or does but it goes to where you last saved)
2) give the possibility to minimise folders when in List View on a Gradebooks. By default I think they should all be minimised in list view meaning you can get to the bottom quickly