Bulk edit Gradebooks: Add columns to many / Add tags to many

There needs to be much more management functionality within the Gradebooks module if the link between those and reports is to be useful.
I appreciate the initial thought must have been for each teacher to manage their own gradebooks but this won't work for school wide requirements where terminology needs to be consistent.
We need to the ability to apply settings to multiple books at once.
Add a new column with the same name, gradeset and other settings to multiple at once.
Add a tag to multiple books at once.