All cleared up then!
So... How do you manually fly a descent with the A/T armed?
From what we've sorted out here, you can't (assuming you're using Lvl Chg for the other pilot's FD) - or can you?
So is the only way to turn the A/T off for the descent until approach, and then Arm it for the approach to provide A Floor, TOGA etc. ??
????!!!