As you probably know, the MacBook Air released in 2018 includes TouchID as a way to unlock it.
The fingerprint reader is located on the top right, where old Mac keyboards included the
Probably you didn't use too much
Eject in your not-DVD MacBook, BUT I used to use a shortcut
Eject to turn off Mac's screen,
and this is something that I've missed since I bought my new MacBook Air.
Finally I've solved it creating an AppleScript in Automator as a service with the following code.
do shell script ("pmset displaysleepnow")
As we've created a new service, we will be able to assign a shortcurt from System Preferences > Keyboard > Shortcuts > Services,
in my case, I've assigned
Control (^) +
F12 as you can see in the image.
I hope that this will help to someone, and if you solved this in another way, please leave a comment :)