View 2 Locations of The Same Document in Word 2010
Ever wanted to see two parts of a document at the same time to compare? Now you can. By splitting the document window into two separate panes you can view and edit two widely-separated parts of a document at the same time. You can split the window by dragging the splitter bar at the very top of the vertical scroll bar, or open the View tab on the Ribbon and select Split (or Remove Split to restore a single window).