I have tried to recreate in a new folder what should happen
Running the DirSet Picker- nothing selected:
ETO01 selected by double clicking- no copy and paste needed:
My folder, with two additional files which were created by double clicking ETO01:
Running EAW opening screen:
Game Set-up clicked. The planesets are listed but the current one is the default CDF set:
Clicked on Planeset2 (ETO late):
Exit Set-up and back to mainscreen. I have one in each planeset and that is why it is different now:
Single mission selected, flyable Allied planes shown:
Spit IX Merlin66 selected:
Set up mission:
Fly- multliskins are used for this aircraft, you can see different letters on the planes:
Here we go:
So, that is what is supposed to happen.
One question- what operating system are you using?