@Asto wow, big thanks for correcting my code. This part was copypasted from Mi-24 and it seems that nobody tested it with exported MPDs. Expect your code to be in the next update. As a main developer of George I grant you kudos.
Hi. The copilot's collective of the real Huey only has the controls listed in the post above by HuggyBear. We have plans to remodel it. For now the nonexistent controls are simply uncontrollable.