After reinstalling the Flirc software and manually adding the device driver for bootldr, I was able to update to firmware 3.5 and record the pause function. My initial issue was getting the driver installed under Win 7. Happy to report the "PS" function works for me and I never had to remove the PS4 controller from my PS4 settings (when I plugged in the Flirc it showed controller and keyboard in the top left corner). Now I just need to reprogram the other keys and I should be all set.