How do i make a gameobject snap in place in game

several worlds make rigid bodies snap in place when entering an area, like for example in cards against humanity. you place a card in a space and it stays there.

How do i accomplish this in udon?

I do NOT comprehend C# or C++ or scirpting in the slightest and have only gotten as far as i have by using Cyantrigger which itself is still something i am new at and actively trying to learn.