How to attach limb of physics control to socket?

[Texn0krat]

Hello. I want to attach some body part to character, let’s say it’s stomach. I’m using physics control to simulate it’s physics. I’ve attached it to special socket, but when it’s collide with another object - body part is just flying away (still attached to socket, so it’s following character’s animation). How to fix that?
I think I should connect one of the bones of attached mesh to socket, but I don’t know how to do it, if I’m using “Create controls and body modifiers from limb bones” node instead of “create control” node, where I can use (probably) control target for that purpose (like this):

Here’s my bp:

[Texn0krat]

After 2 days of attempts I’ve found easy solution. It’s not the best option, but at least it works.
We need to get body modifier of the root bone and set it’s movement type to kinematic. In that case object will be connected to socket and other part of it will have physics: