All I want to do is make my slides run for around 20 seconds each, and then go to the next slide automatically. I want to be able to start the presentation and then talk as the slides just change like magick. Is this something that can be done, because I have searched this forum and the internet and found no way to do it. It seems like such a simple thing that I have seen done already. If there is a way to do it I would appreciate knowing.
Your scenario can be achieved with next settings in the Transition tab:
Remove checkbox from Start On Click and set the desired delay so it will automatically change slides after set amount of time.