REQ: Rewind to start button?

I really don't have room on the screen for more buttons, particularly on devices with smaller screens. It's easy to go to the start with the scroll function. Fling the finger down to scroll quickly, or if too far, note the blue circle that appears at right margin when you scroll, grab it and drag to top. Then double-tap the first sentence to start reading from there.
If you like to read in horizontal scrolling mode (text divided into pages), then execute "pinch" gesture, as if you wanted to make the image smaller. Now you can scroll quickly with horizontal flings or with the slider at the bottom. Tap once any page to restore it to full view on that page, double-tap sentence to start the reading aloud from that place.