focused_screen_y and focused_screen_x

[xidiot]

Is it expected focused_screen_y to be always 0 and focused_screen_x to be != 0 only when the focused screen is not the main one? I've found this comment, but not sure 100% if it is related.

Bug in Scripting Engine Variables

unfortunately macOS coordinates are very confusing due to different coordinate systems being used for different things. For these variables BTT passes the raw values without converting them. The window origin is relative to the top left corner of the main screen (the one with the menubar in your screenshot). Here anything higher than the menubar will be negative, everything lower will be positive. The screen origin however is relative to the bottom left corner of the main screen and everything…

If the focused screen is the MacBook's internal screen both x and y have values.

[Andreas_Hegenberg]

that depends, if both of your screens have the same Y offset then it will be the same for both of them but X will still be different (if your screens are positioned left/right of each other)

[xidiot]

Not sure what do you mean. Here's the layout:

Is this expected with this setup or you need more info than that?

[Andreas_Hegenberg]

in that case the two top displays would have the same y (=0) but the bottom one a different y.

All of them would have different x values

The macOS origin is at the top left corner of the screen that has the menubar (in your case the top left one)