Float (undock) any window by dragging. Also implemented as action in Windows and context menus.
To float by dragging:
Windows Float on the main menu.Info: A tool or document window that is in Floating state is within a rafting window container. A tool window can be in a rafting window by itself or as part of a tool window hierarchy. The rafting window can be moved anywhere above the dock site hierarchy and can be docked during drag operations. The rafting window can be maximized or restored.