Opened through Window > Show View > UML Explorer, the UML Explorer is the anchor view of Together. The UML Explorer combines useful visual and functional advantages from the Together UML Navigator with the Package Explorer. You can see all of your diagram elements at a glance while also keeping an eye on .java, XML, and all other project files. Context menus in this view also access commands from both the UML Navigator and Package Explorer.
UML Explorer vs. UML Navigator:
In the Together help documents, the terms "UML Explorer" and "UML
Navigator" are sometimes used interchangeably. Menu commands that you can
access through the UML Navigator can also be accessed through the UML Explorer.