I am trying to write a script which will list all FEM cbush elements and their orientation CSYS ID. What PCL function can extract this property from "region_id"?
I've attached a routine I have (I can't remember how much of it I wrote) to dump out props so I could understand what I needed. Hopefully you can run this to guide you in what your PCL needs to do.
Specifically for your CBUSHes, use db_get_prop_value with word_id = 4174. You can tell this is the word id you want by looking at the PCL issued when you create a cbush: