Jo - thanks for the work on that transcript. I still do not understand Boeing's 'reservations' on multi-modes, since all we are looking at in the Asiana case is manual flight with A/T. One thing puzzles me in it - it appears that Boeing designed it to work with A/T off and talk of it 'engaging' in that condition - not what I would want having selected it off! At least the 73 msr function was inactive with A/T off.
LW_50 - Indeed not - it is, I think, simply designed to allow altitude change, but we know the crew was well confused with modes etc. as shown by the selection of it with a higher altitude selected BUT I still argue that msr would be a good idea whatever it is being used for.