We use categories to customize tiles so users of departments can only see certain categories. But if they are in the catalog view they can still see all the categories. So need the ability to hide categories from departments so when they are in the catalog view they cannot see the courses in the catalog. I know you can restrict courses for a department but if you do that then the course is also restricted from public view and we need to have the course available for public view so that does not help our issue.