You can change the actual position of the Target
simply by clicking on the Map Display. The radius is
the distance at which the target will be reached by
the player. A Radius of 0 mean the target can't be
reached by the player and a radius of 1000000 mean
the Target is always reached independently of where
is located the player on the map. A fine distance is
about 1500, which represent the length of a car.