From the top menu, select New->Folder.
In the Create New Folder window:
Enter a name for the new Contacts folder.
Select Contact Items in the “Folder contains” field.
Click OK.
The new Contacts folder appears under the main folders list.
You may also share your non-default Contacts folder and subscribe to another user's non-default Contacts folder. See Sharing Your Contacts Folder and Subscribing to Shared Contacts Folders for instructions.