Again, somewhere on the Tech Log threads at least one Airbus FBW pilot stated that F/Os train on both sides of the flight deck, so left/right-hand orientation should not have been a problem.
Sorry. Once again : prior to june 1st 2009 Air France F/Os did
NOT get any, on purpose, left-seat flight training.
Some sim sessions ("true" captain not compulsory) just happenned to be with a two F/O crew but the purpose was not to train F/Os in the left seat.