Resource Manager - Set folder level properties

Summary

Is there a way to set all folder assets to private or public at once?

Content

It appears as though all my images and pdfs have reverted to private. I want all learners to see the images on the pages and have access to the documents as they were originally intended. I can change the properties one item at a time. Just looking to make this quicker. 

I am not sure how these all reverted to private, from public. Would like to know if anyone has ideas on how this could have happened too.