No problem! Glad this helped. Yea it's no surprise you didn't know about it. It just came out about 3 or 4 months ago. As for how to use it for PPT slides, what you can do is create the prompts before hand. Live Speech allows you to save phrases or sentences or words that you use most often. So what you can do is add all what you have to say for a slide in one prompt. You add them in order of the slides. Then once you reach the slide, you just click the prompt and the voice over for slide will be read out. And when I created my personal voice, I too had some slight difficulty reading out loud the prompts because I would block on words. But I realised that at the moment you feel a block coming on, you can stop the ipad/iPhone from listening by clicking the red mic button. Then you click it again to start again so you can fluently read the voice prompt. Just tip in case you want to re-train the personal voice.