1. List of Site Collections 

  2. Create a new Site Collection 

    Set different properties such as Title, Website address, etc

  3. Manage Site Collection Owners/Administrator or you can also assign Support Partner 

  4. Manager Sharing settings 

  5. Buy additional storage 

  6. Manager Server resource and quota 

  7. Manager SharePoint version settings (currently SP Online tenant offers SP 2013 experience).  In future when Microsoft roll out newer version for SP Online, you can manage it from “Upgrade” settings

  8. View deleted Site Collections