Thanks, the last door is a tricky one. I will try not to give any spoilers to others though :) The note says 2x general and 2x up down, you got the one on the right which is just a general code. Hint: the up down right general code is first.
What i don't understand it is a 2x(Up, down) or 2xUp and 2xDown
Its up, down, up down afterward. I undersand fully why you would be confused :D