The following article explains what to do if you take more than 3 putts on a green and how to record this through PinCollect.

There is no 4 putt option on the first PinCollect screen. If you press themiddle left button you will scroll to a second PinCollect screen where you will find a 4 putt option. You can then press the button next to the 4 which will record your pin location and your 4 putts.