I've found a feature on my computer that might be of interest to you all.
When Viewing 'You Tube' on the full screen setting, it is possible to jump the film forward by using the right arrow key instead of the mouse. If pressed quickly you can proceed through the film at 3 second intervals. Conversely, if you hold the right arrow down the film will keep jumping forward until you let go. It doesn't work on the small size screen.
It also works in rewind.
Anyone have any other tips on button pushing. ????
Cheers
Ken