Camera Collision?

If I recall correctly, there used to be a way to create an unseen camera collision plane that didn't create a physical collider, but I can't remember what it was, and I haven't been able to find anything similar on the wiki.
I remember camera regions (where the camera can be fixed to a certain spot, made to rotate around the avatar, etc), but what I'm trying to do is make the camera follow the avatar like it normally does in 3rd person POV, just lower.
I have a large room with a tall ceiling, but I want the camera to sink down so that it is a little bit above and behind the avatar's head.
Thanks for any help,
~Kia
I remember camera regions (where the camera can be fixed to a certain spot, made to rotate around the avatar, etc), but what I'm trying to do is make the camera follow the avatar like it normally does in 3rd person POV, just lower.
I have a large room with a tall ceiling, but I want the camera to sink down so that it is a little bit above and behind the avatar's head.
Thanks for any help,
~Kia