Can the back paddle be mapped to ingame functions ?

As the title says. This will decide if I buy the controller or not. I'm planning on getting the PS5 BFG but I mostly play CoD in particular. I was wondering if the back paddles are exclusive to buttons on the controller or if they can be unique in game functions, and act like their own button. Specifically wanna use this for an instant dolphin dive, equivalent to having CTRL being the instant dolphin dive button for kbm. Just want a button to separate the crouch and dolphin dive. Really particular question but thanks in advance 🙏