[IPython-User] Swap enter and shift-enter in notebook?

[Michael McNeil Forbes]

How would I go about swapping the behaviour of "enter" and "shift- 
enter" in ipython notebook?  I find that my fingers are conditioned to  
expecting "enter" to execute.  (In Maple, for example, the behaviours  
are exactly opposite: shift-enter inserts lines and enter executes.)

Can I customize this with a local style-sheet?  (I imagine it could be  
done on the server, but it is probably best to keep the server  
configuration standard so that colleagues can use the standard  
documentation etc.)

Thanks
Michael.