ok so imagine her creating a T.A.R.D.I.S like room anywhere she wants and then being able to control whats inside that world/room E.I. she could make a room full of computers if she liked with a snap of her fingers and a rift in space would pop open so she could walk through to it or she could line the dimensions up to an already existing entrance and use that. She is like god in this world meaning she can create and control anything there, as well as pull things through the rifts from that place or bring people and things into it.