On the SkyView map the course predictor is depicted as a thin white line of indefinite lenght. Then around the position of the aircraft there is a circle of variable diameter, depending on the scale. Most times the radius of the circle written somewhere along the girt is hard to find, and the course predictor is hard to see. It would be nice to have course predictor of user defined length such as, say, X minutes (flight time at current speed), or Y miles. It could also be made so that it is easy to see against the background of the map. Many other GPS have this very useful feature.