FearLess Cheat Engine

Is it possible to make something to enable air-swimming or somesuch? I accidentally turned off the water *before* getting the silver idol in Barkhang Monastery, it seems like the water can't be turned back on and I'd rather avoid having to redo the entire level just to get it. Even just a way to res...

Could you do something for adding the Robot Head to the inventory? I'm encountering a glitch where I don't have it in my inventory even if I pick it up, and can't progress in the game. Maybe forcing it in will help.
(Alternatively, something to bypass that mission flag, I guess)