Settings for pages vs whole workspace

Would save so much time if we could put the whole workspace in read only mode, and not have to do it to individually to all pages.

I'm thinking this could be used especially in courses/trainings during holiday periods (when there's possibly no moderation etc) and when making alterations to the content.  

Same with user admin: There are times when it would be easier to just have the whole workspace access only to admins and then be able to switch it to users from one place.