1. cast shadow The value that needs to be changed for cast shadows does not appear to be available from Python. At least not easily.

I have a Visual basic program that will change the CR2 file but you can do that with a text editor.

2. change parent for hair from head to a prop.

try the attached zip file scripts.

one displays all items that are parented to the head. This is a no risk script to check that only the hair is selected.

the other script actually changes the parenting.

I have tested this in Poser5 SR4 and it appears to work correctly, but not tested with multiple hair groups.

Do not delete your original file before saving and testing the new hair prop.

regards