The PS4 controller will get customizable buttons with this new add-on | TechRadar
Apparently we've been calling the 'X' button on the PlayStation controller the wrong name all this time | GamesRadar+
How to Remap Buttons on Your PlayStation 4's Controller
TROPRO Wireless Controller for PS4, Gamepad Joystick Remote Controller with Back Buttons Compatible with PS4/Pro/Slim/PC/iPhone/Mac,Turbo/Audio Function/Interchangeable Stick Module - Walmart.com
PlayStation® Button Assignments – WARFRAME Support
Black Replacement Shell Cover Case Kits Buttons For PlayStation 4 PS4 Controller | eBay