Sometimes I mark a location on a map for a general reference. Then later I might want to "fine tune" the coordinates while on sight. When I go to edit the waypoint it would be nice to have a button that would insert the current GPS location into the coordinates field so that I could "move" a waypoint to my current location. It would be even nicer to have an "average" button that would average the coordinates when standing in a place for a while. There are utilities that do this for creating a geocache.