I am about to change job and at the job where I am now they let me use the forum but where I will go they are not that user friendly in this regard.
Is there a way to make a webpage invisible through a keyboard command, I mean making it completely disappear from the screen and to use the same keboard command or combination to bring it back ?
Good luck with your new job. I am sure you will find a way to get around the problem. This might help:
https://money.howstuffworks.com/hiding-computer-screen.htm 