I want to do programming in my MacBook Pro while looking at the lectures on Udemy on my external monitor. Thanks to this question: How do I control the Play/Stop button for a website (e.g., YouTube) in my external monitor while not having to move my mouse out of my main screen? I can now pause the youtube video in the external monitor, but what about fastforward and rewind? How to mimic the right-arrow and left-arrow key effect on the external monitor without moving my mouse out of the main screen?
Thanks in advance!