Sometimes you're making global adjustments to grades. E.g. Test was too hard so you're bumping up the whole class. Right now you'd have to do that individually. Why not allow grade center to be "checked out" and become a Google sheet so you can do spreadsheet operations to your grades and then get checked back in.
To ensure someone doesn't fully overwrite grades have version control such that Professors can always undo anything they did in Google sheets.
|Product Version (if applicable):||0|