Changing Animations with button clicks

Image A is the advanced actions that I've assigned to the first button to execute. Image B is the advanced action I've assigned to the second button to execute. The first action works just fine. I get the slide to fade/zoom out the image that's displayed in the beginning and fade/zoom in the image that's initially hidden. That second button also works in that it fade/zooms out the image that was originally hidden and faded in, but it doesn't fade/zoom in the image that was originally displayed and faded out. Make sense? So, my first button does the first action while simultaneously hiding itself and revealing the second button. The second button should do the same. Hide itself and show the first button, which should then start the whole process over again on the same slide when I click it. At least, that's the image I had in my head. Might not be able to do it.