How can I make Courses/Offering not viewable to anyone but the Learning Specialist?

Summary:

I need to make learning not viewable when I'm trying to make an assignment. I also need to know how to make the course/offering unviewable once we don't need it anymore.

Content (required):

Catalog

Version (include the version you are using, if applicable):

Fusion

Code Snippet (add any code snippets that support your topic, if applicable):