1)Enable HEN and/or Mira if necessary.
2)Enable/Inject the WebRTE payload/exploit.
3)Visit http://ps4trainer.com/Trainer and enter your PS4 IP.
4)Launch your game on the PS4.
5)Click your game(with the matching CUSA/version) in the trainer.
6)If the trainer message says "Trainer Attached.", you can start cheating.