I did find some stuff with depth of field in the name, but when I drag on the camera, it gives me some error, such as “This is an editor script” or that the script needs to derive from MonoBehavior. Sorry I’m a newb!
This is more a basic scripting question, but you’ll probably want to drag in one of the PostProcess…cs files onto the camera from the Runtime folder. I’d say either the …Behaviour or …Component.