It should be possible to move an organized air unit in a sea box to a lower numbered sea box during the naval air step.
To use a naval air mission to move an aircraft into a lower section of the same seabox, simply put it into any lower numbered section.
It should also be possible to take an organized air unit at sea and fly it back to land.
To fly a naval air mission from a sea area, take the aircraft unit from its section of the sea-box and put it on any hex-dot in the sea area. Fly it back to any friendly controlled hex where it becomes disorganized. Reduce its range by the same number it would have cost to enter the section it came from (i.e. 10 from the 4 section, 6 from the 3 section, and so on).
However, MWiF will not let me select an organized air unit in a sea box during the naval air step, even though I have plenty of air actions remaining. Was this functionality not coded, or am I missing something? Organized air units in sea boxes are not displayed in the select unit window during the naval air step, even though they are eligible to be moved.
I thought I knew how to play this game....