Parked Plates - How to Configure Detection Mask?


I am needing assistance with configuring the Detection Mask for parked plates. The form says to ‘Press the enter key to complete a mask, press the ESC key to cancel.’ and then there’s a ‘Save’ button.

When I try to add a mask, all I get is a dot, or a series of dots. If I try to place the dots to cover a plate, the dots vanish if they get too close. The process is obscure; do I just need to place one dot onto a plate? Or cover a whole plate? Any pointers appreciated.


Figured it out. The requirement is to serially click on a wide area of the view, not just upon an individual plate.