Step-by-Step Instructions
Connect Your Monitor
Make sure the USB-C cable is securely plugged into both your Mac and the external monitor.
Open Display Settings
Open System Settings -> Displays.
Access the Arrangement Options
Look for the images of your displays.
Click on Arrange
Arrange Your Displays
Drag and drop the display icons to match the physical layout of your monitors and click "Done."
Finish Setup
Close the settings window when you’re done. Your changes will be saved automatically.
Tip:
If your monitor doesn't appear, try unplugging and reconnecting the cable, or click Detect Displays in the Displays settings.