After entering the ANPR camera details use the appropriate toolbar icon to select a camera.
Individual listener windows open for each camera, they can be moved around screen or onto a secondary monitor, its position is saved when the window closes. If the window is out of sight, ie: not visible when opens, close it and open it again holding a shift key down whilst you do so.
Hold the shift key initialises the window to its default size and position, namely centralised on the primary monitor.
