I am using a powerpoint as a set of flash cards. I have it set up so that I can randomly re-arrange the slides every time I open the powerpoint, here is what I would really like to do. In order to rule out the slides you have learned successfully, have a button (icon or whatever) that appears on every slide in the same fashion, that when you click on it it hides the current slide. This way if you get a slide correct, you click the button that says you got it correct, it is then hidden, so that when you go through the powerpoint a 2nd time only slides you got wrong will be shown. Anyone have an idea? Sounds simple enough, button click will simply say hide current slide. But also, need the button to appear on every slide.