I got this gteat map of the CDR from Bigdog, But it is too large to get into my 550 Zumo. How do i make this map into about five smaller ones so it will work on the Zumo. When i try to load it now it says it has too many waypoints. Can anyone help? Here is the gpx file if anyone can cut it up. Or tell me how. I want to keep the waypoints. I just want to make it into multiple maps.