changing an in-scene object to a prefab

Questions & Answers
1

So I have a bunch of objects in a scene which are not prefabs that I would like to apply a prefab to. Basically the opposite of taking a non-prefab object and making it the primary prefab. Is there a way to accomplish this?

(If I am not being clear tell me. )

2

Deemed impossible. Maybe in the next unity update. (At least I never figured it out.)