Addressing children of matrix widgets via script

Hi again! Is there any easy way to get the index of the child that's being interacted with from the matrix script? '$' doesn't work since it's not in the props field, and setting the script tag in the props field doesn't seem to work either, though I'm still not 100% clear on the #{}, JS{{}} and @{} syntax's

From Scripting - Open Stage Control

value[getIndex(id)]

works for 1st level children of the matrix.

Woohoo! Thanks man!