Navigating Screens 
Navigating Screens The mouse is the easiest way to move around a screen. Simply position the mouse arrow onto the selection you want and "click" the left mouse button. Some Selections, such as Buttons, only require a single "click" of the left mouse button. Other selections, like selecting an entry from a look up table require a "double-click" of the left mouse button. Another common method of navigating Windows screens is the Tab key. The Tab key is used to sequentially move, field by field, through the screen. Pressing the Tab key while holding down the Shift key will cause the cursor to move backward, field by field, through the screen. The Enter key is normally used to complete the processing of or activate the default process of the open screen.