Hello again guenseli,
Problem solved. It seems to be an issue with the aircraft folder name. I've changed the military version folder name under simobjects\airplanes\ from WoP3_P51D to WoP3_P51D_Mil, then edited the file ident.Lua to point to new ac folder name. I'm now able to create separate controls for each version.
I've only done this a few hours ago so we'll see if it holds over time.
I've tested it several times, so far so good.
This will create issues for any updates from A2A but that is easy to work around.
FlashO