Greg,
As long as you are using 10.1 M040 or higher the methodology that Ashwini provided above is the path you should be using. Whether the custom attributes are modeled or typed it will work.
Greg,
As long as you are using 10.1 M040 or higher the methodology that Ashwini provided above is the path you should be using. Whether the custom attributes are modeled or typed it will work.