One-click to turn off the monitor

[ktech0]

Before opening the issue, have you...?

• [x] Searched for existing issues

Is your feature request related to a problem? Please describe

Seems there is no one-key shutdown function for the external display.

Describe the solution you'd like

It is recommended to add the function of turning off the external monitor with one key and pressing any key to resume.

Describe alternatives you've considered

As described above.

Anything else?

No response