how does zoom centre on mouse cursor work

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Hi I am trying to find a way that the main window will centre on the mouse cursor when I use the mousewheel to zoom
I was hoping that the preference Horizontal Zoom Centre > Mouse Cursor would do the trick but it either does something different or is being blocked by some other preference

Does anyone know if there is a setting that will allow one to move the mouse cursor and start zooming with the screen centreing about the position of the mouse cursor?

thanks