Although the software is different, look at the win500 guide, it will give you an idea what you can do with software and importing from RadioReference, it may help. Maybe a local will jump in and help you, I have never use ARC software.
I am looking for a ARC 500 file for Pro 106. St.Charles, County MO. would be great. Then I can see how the software is set up and will help me understand how to program this radio.