Meta Interaction SDK questions about Posed Grabbing and Throwing/ Object Interaction Physics?

Hello! I was wondering if anyone knows how to trigger a "pinch" event to grab an object with a premade pose? I have poses that pinching snaps to, but I would like the player to be able to do the hand motions to grab objects rather than pinching in the real world. I know this messes with the confidence intervals etc. but I was wondering if anyone has any ideas?

Also, does anyone know where the grabbable object physics are scripted? I want to look at the hand tracking velocity calculations in particular. Thank you! 😄