Access Parameters of a Subroutine Call from script

[AndyFarr]

I would like to read the parameters of a subroutine call from script.

I cant seem to do this. Any Suggestions

Step.Property("_EMAIL_ADDRESS") does not work

and

Step.Property("ParamValues") may not return the correct parameter as there is more than one parameter.

The one I want is Marked with Array='0' in the XML but there is nothing in the help about accessing Array Properties.