Keep MacBook on when closed without keyboard and mouse I use my Mac a lot to show movies or play video games on a larger display without a keyboard or mouse attached.

How can I set up my Mac so that it continues to display to an external screen when closed without a keyboard or mouse attached?
I would connect a Bluetooth keyboard and mouse if you can’t have physical cables connected. 

This function is in firmware, so you’d need to engineer a solution to change Apple’s conditions for closed clamshell mode. 


https://support.apple.com/en-us/HT201834