Use left and right arrow keys to change slides. READ THE WHOLE THING.DO NOT HOLD DOWN THE LEFT OR RIGHT ARROW KEYS, OR ELSE THIS WILL CAUSE A PROBLEM.
I give credit to @WO997 for the tutorial idea. This tutorial teaches you about the x, y, and z positions, and how to use them. 12/26/14:One fave 3 loves from @ErnieParke, @IGMB, and @leszpio! Another 2 loves 2 faves from @dapontes and @WO997!