As soon as you register an account in LUNA, an Active Media Group is created. This first Active Media Group is titled "My First Media Group." As you browse content in a collection you can add this content to your Active Media Group.
Checking what is already in your Active Media Group
While browsing LUNA and looking for content to add to your Active Media Group you might want to check to make sure you haven't already added that content. For a quick reference to see what is already in your Active Media Group, open the Active Media Group panel located at the bottom of LUNA.
Changing your Active Media Group
You can easily change which Media Group is the Active Media Group:
Using the pull down menu below your username, select the Media Group you wish to designate as the Active Media Group.
In your user account settings, select the Media Group you wish to designate as the Active Media Group.