How to make charatcer's torso not float

[raw verge]

im trying to make a crouching system and for it i wanna "turn off" player's legs so that you are much shorter, but for some reason when i turn off collision and etc nothing changes, if oyu delete legs as a whole it does work but i need the legs to come back later so its a bad choice
i also tried deleting motor6d for legs, but the were floating inplace while character just had invisible legs or idunno

[tacit moon]

https://i.gyazo.com/3046776f9763a0323202c515089e0c72.mp4
you can change your hip height i guess

[raw verge]

thanks

[raw verge]

also one more question if ur still here, how do i make the torso not bounce? cuz when i do this thing it bounces a bit which looks bad

[pearl wedge]

hello everybody and I am a fish