Transform world

Desire: Given a world full of many actors and lights, is it possible to transform (translate, scale, and rotate) the entire world?

Motivation: I’m compositing one world into mine, and I want to dynamically adjust the content so that a particular object that is moving in the world is in a fixed place in my world. (Imagine a person walking around a virtual world. I want to draw their virtual world in mine, but always center the person in a fixed place in my world.) This world is being given to me by another team (via a plugin using replication) and I’m wondering if I need to require that they attach the entire world underneath a single actor for me to transform, or if there’s a way to do that on the world itself.