Invisible hack

Hey, back in the past, there was an invisible hack with rez modding. The character was
lying on the floor, but in the player's view, he was crouched. I was able to make the 1st
part, but in my perspective, it continues to stand, making it easy to kill. How to make
the player crouch?
Also, how would it be do make an Anti-Invisible?
Thanks.

Really? No one?
I'm not asking a full tutorial, just the name of
the animation and the name of the replacement.

i got a working invisible for you if you help me make rb001 no bug damage