Locked 3rd person camera angle?

I realized that NP 3rd person perspective camera angle is on point, it gets real close and locked to the character when someones nearby and create an uniquely immersive experience to Rp. If i tried changing camera angle using the default hotkeys, it wont work, its locked. Anyone knows how NP pulled this off? Thanks guys.
P/S: seems they removed the ability to switch camera options and made people stick to either 1st person or 3rd (closest) one.