public void Remove(StiReference reference)
 {
     List.Remove(reference);
 }
 public void Insert(int index, StiReference reference)
 {
     List.Insert(index, reference);
 }
 public bool Contains(StiReference reference)
 {
     return(List.Contains(reference));
 }
 public int IndexOf(StiReference reference)
 {
     return(List.IndexOf(reference));
 }
 public void Add(StiReference reference)
 {
     List.Add(reference);
 }