Warning!!
Be careful in transforming the general cockpit area as it puts quite alot of stress on the toy.
I did as Graham did on the toy pushing the cockpit area back and then down. But trying to get it done caused heavy stress marks on one of the two grey pieces fastened in by screws. Picture below: the area above the circles. Notice the two black screws? I now have several white marks leading vertically under it.
After transforming it I sanded down a bit the two little square blocks that caused the resistance. Those are circled in the picture posted. I recommend that when you transform, place your thumb on the grey pieces, securing it in place, clearing the white block.