Is it possible for an action button to be "sent backward" so it is hidden by an image, but still function? I have some slides with one picture per slide. I would like the user to click on the "correct" part of the image, and after doing so advance to the next slide. I have the show set on browse at kiosk, so action buttons are required to advance slides. However, if I move the action button backward, so it isn't visible, clicking on that area doesn't advance the slide...