Freeze physical asset pose while simulating

Hi guys! Maybe I can find a solution to my issue here.
I need to freeze bone transforms in a certain pose while simulating physics and half of what I need is done but…
I have used pose snapshot to freeze pose but that doesn’t work if you will not turn off simulation but I need to freeze pose while simulating so the body will behave like solid body and the joints will not move anymore.
Any ideas how can I achieve that?
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