Noob here,

I want to change my main display using AppleScript. And it didn’t work for me when I try to click “XG27UCS” button in “Displays” window.

I want to click here

to change into xg27ucs settings

But failed

code here

tell application "System Settings"
    reveal pane "Displays"
end tell
tell application "System Events" to tell process "System Settings"
    tell application process "System Settings" of application "System Events"
        click button 2 of scroll area 1 of group 1 of group 2 of splitter group 1 of group 1 of window "Displays"
    end tell
    tell pop up button "Use as" of group 1 of scroll area 2 of group 1 of group 2 of splitter group 1 of group 1 of window "Displays" of application process "System Settings" of application "System Events"
        click
        if value is "Main Display" then
            click menu item "Mirror for Built-in Display" of menu 1
        end if
        if value is "Mirror for Built-in Display" then
            click menu item "Stop Mirroring" of menu 1
        end if
    end tell
end tell

and when i try to get actions of this button there seemed to be no action

this is screenshot

button information here

Xcode Accessibility Inspector

I need at least 10 reputation to post images 🙁

many thanks