Edit capabilities in teleprompter mode

[kalheyn]

It would be very helpful to be able to edit the transcript in teleprompter mode.

I wrote out my transcript, but as I was practicing before my presentation, I noticed some edits I wanted to make. I had to exit the teleprompter mode and make the edits in the transcript, and then start the teleprompter over from the beginning.

I'd love to be able to edit the transcript from the teleprompter mode without losing my place.