Within Microsoft Word, there is a feature to split a document screen into two sections so you can view two parts of a document at the same time.  To split the screen, double click on the small rectangular box located above the vertical scroll bar (see figure 1).  You can resize the panes by holding down the left mouse button (when the mouse is hovered over the split box), and dragging the split box up or down (see figure 2).  To remove the split screen, simply double click on the split box. [more]

Figure 1

Figure 2