I would like the ability to add grades in gradebook without them going "live" instantly - that is, I'd like to add the grades, then push a button to publish them (or even be able to set a time for them to publish automatically). It would be useful to have a "Published" grade average and an "Unpublished" grade average. This would be useful in seeing the effects on the class of any particular assignment, and whether I need to make any adjustments for committing the grades to the gradebook.