Make assignments editable after assigning. Allow grading on a sheet/mass assign grades

Since this program is still in beta, it requires frequent work-arounds or we have to grade alternatively when things don't show up/work etc. Example: I made a playlist and one of the items isn't working so the students can't see it but I can't alter the playlist or delete this item from their assignment. I'd like to suggest, for development, a sheet-style method/option of grading students on assignments so that we could either fill a column with points or at the very least be able to just have 1 click between scoring each student on 1 assignment when we have to compensate for these bugs. It would also be nice if assignments could be altered instead of staying static, (perhaps a notification or sending the score back automatically when an assignment is altered could be an option?