Not sure what probe you are using but you need to go to "Config" "ports&pins" "input signals" scroll down to "probe" put green tick in you then need Port1 Pin 10 to 13 or15 your choice find pin no on board connect probe wires and test, you might have to go back in and select "active Low".

Then proceed to putting code into hidden scrip macro as I stated above and it should be working and as Neale says make sure no typos or commas in wrong place.

Just re read your last post, Not sure about your last comment "as stated before should it be port3 for usb and on break out board using in 1 pin" don't know where usb comes into this as you should be connecting to B out B.

Phill