Invert relays v5 Machine usb

Cant seem to invert relays in version 5 machine usb ino code. Tried changing Active low in Agopen but doesn’t seem to make any difference I am sure I am missing something simple

did you use this button?

Screenshot_20210505-114406~2

Thanks very much but what does active low do in machine setup. also not a major problem but when the field is closed the relays activate and in my case turn on the spray booms which I can disable with a master switch

it’s the logic of the external work switch if you have it