Note: How to use Sidecar and enable it on incompatible Macs in Catalina - AppleToolBox

How to use Sidecar and enable it on incompatible Macs in Catalina - AppleToolBox appletoolbox.com

"defaults write com.apple.sidecar.display AllowAllDevices -bool true; defaults write com.apple.sidecar.display hasShownPref -bool true; open /System/Library/PreferencePanes/Sidecar.prefPane" #pub