Hey, I was just curious on how to view more than one cell in the render window. I've got surround view and the window stretched across two monitors, and would like to view a little further out in the world if at all possible.
By default the CK loads a 5x5 grid of exterior cells (Toggle their borders with B ).
Go to the Misc tab of the Preferences window and you'll see 'grids to load'. It's 5 by default. Depending on how beefy your computer is, you could make it 7, or 9. If you have a REALLY good computer you could even possibly go as high as 13. Note that you must enter an odd number.