Hi Kei,
I understand that you want to change your screen's orientation using matlab script. Rotating the screen orientation programmatically is generally not within the scope of MATLAB's functionality. MATLAB is primarily designed for numerical computing, not for controlling system-level settings.
However, you can potentially accomplish this by using MATLAB to call a system command using the "system()" function, provided that there is a command-line utility available on your system that can change screen orientation.
I think "DisplaySwitch.exe" on windows machine could help you achieve this.
Hope this helps.