Scrolling -- Vertical -- Through Non-Document Windows By Pages For Non-Document Windows, you may move forwards or backwards one screen at a time by moving your mouse pointer to a position above or below the Thumbwheel (small transparent box) on the Vertical Scroll Bar and clicking. Also, you may move the Thumbwheel with your mouse pointer up or down in the Vertical Scroll Bar to gain similar (relative) up and down movement in the Non-Document Window. To do this, move your mouse pointer to the Thumbwheel, PRESS AND HOLD DOWN the Select Button (far left-hand button on your mouse) while dragging the Thumbwheel to the desired position, and then release the Select Button when you have the correct relative position.