Surprised no one has answered- I was checking if their was any news on the update.
I suspect you may have worked it out by now but if you go to the audio section and choose a folder with audio in it will automatically start the next song- then just navigate to what you want to read. I haven’t been able to get it to move to the next folder – by that time I am quite happy to back to the main and redo the above process. I have found that battery life certainly goes a lot quicker with audio but it isn’t too bad as ong as you don’t use the speakers.