In the iPad version, we could scan forward and back 10 seconds by looking to the right or left of the screen and tapping our fingers together. If we used the Magic Mouse we could move forward or back by swiping. Both of those capabilities are gone in favor of clicking arrows in the pop up box that shows when you click on the screen. It is more cumbersome, with 2 clicks instead of one, and if you are searching for something, multiple 2 click sequences, where it used to be click, click, click with your fingers to find what you are looking for. A definite step backwards in ergonomics.