Detached views

Detached views and editors are shown in a separate window with a smaller trim. They work like other views and editors except they are always shown in front of the Workbench window. 

You can create a new detached view or editor by dragging any open part outside of the Workbench window or by selecting Detached from the menu that opens when you right-click the part's tab.

Workbench Detaching views and editors
Moving and docking views
Maximizing a view or editor