1. Manage Local Repositories
2. Manage Global Repositories
3. Inspecting and Opening a POM from the Repository Browser
4. Modify the Indexing Settings - Enable Full Index or Min Index
5. Materialize Projects from a Repository (Assuming that they have the appropriate meta-data)
Important Note: If you need to search for dependencies by class name, you will need to select Enable Full Index for the central repository.
Watch this video for instructions on managing maven repositories.