public int this[FalloffSliderPoint point]
 {
     get
     {
         return IndexOf(point);
     }
 }
 public void Remove(FalloffSliderPoint point)
 {
     _points.Remove(point);
     Reorder();
 }
 public int IndexOf(FalloffSliderPoint point)
 {
     return _points.IndexOf(point);
 }
 public void Add(FalloffSliderPoint point)
 {
     _points.Add(point);
     Reorder();
 }