Use Custom POIs to upload lists of your own locations to your RV GPS. Custom POIs may be destinations such as museums and scenic spots, or alert locations along your route for red light cameras and railroad crossings. Lists of custom POIs are available from third-party sources such as POI Factory: www.poi-factory.com. You can import custom POIs as .csv files. Click Add locations on the Rand McNally Dock™ and select POI for destinations or Alert POI for alert locations.