Moving the U-Verse box

If the box is wireless, yes.

If the box is not wireless, no, there are no such instructions.  Largely because what you will have to do is largely dependant on how your TV Receiver is connected back to the Residential Gateway and the available wiring within your home to connect it at the new location.

You may contact AT&T to relocate it for you, for a (not very small) fee.  It is possible that there are local companies that could also do such work, depending on what is necesary, but they may not be any cheaper.