Save render settings with sun node

Illidanstorm

I want to save a render setting that is using the Sun-Sky with a set Sun Node that is called "Sun". However when I load a new scene, add a Camera with the name "Sun" and apply the saved render setting, then the Sun Node will not change itself to the camera "sun".

How can I save it so that when I load my render setting it will automaticlly change the Sun Node to the "Sun" camera?