This may already be an idea that's out there --
It would be a nice option to have the ability to share a link with participants where they can view the slide show as it is being presented from their personal device.
For instance, if someone in the back of the room cannot make out some of the text on the screen at the front of the room, they could click the link on their personal device to jump directly to the current slide in the presentation to view and follow along with the presentation from their device.
Please let me know if I need to provide further clarification.
Thanks for your consideration.
We have started rolling out PowerPoint Live, an experience that allows participants to follow along with the presenter from their own device. Check it out and let us know what you think!