Zooming in and out can be a lot quicker and more precise with the ability to zoom in and out with a modifier key(s) and scrolling up and down with the mouse. This type of quick scrolling has been implemented in Bitwig Studio from the beginning. It's extremely quick and efficient, definitely one of the things I miss since moving over to Studio One. What's even better is the zooming is inertial (or momentum) based which is great for zooming very quickly and accurately. If you're a Mac user, using the Mighty Mouse with this type of zooming is absolutely incredible.
