Thanks for this, its a good work around for the short term.
However Id still suggest changing the default because
a) new users will not know this workaround, and
b) even using this method, it doesnt open to the 'rename' part of the dialogue box, which is not in line with what you expect when choosing a 'rename' key,
c) there are still too many clicks really, which is annoying if you do a lot of renaming (which I do).
S