diff --git a/base/Catamaran/Catamaran/FormCatamaranCollection.cs b/base/Catamaran/Catamaran/FormCatamaranCollection.cs
index 62d71ab..5dc3d63 100644
--- a/base/Catamaran/Catamaran/FormCatamaranCollection.cs
+++ b/base/Catamaran/Catamaran/FormCatamaranCollection.cs
@@ -106,6 +106,10 @@ namespace Catamaran
                     MessageBox.Show(ex.Message);
                     _logger.LogWarning($"{ex.Message} в наборе {listBoxStorages.SelectedItem.ToString()}");
                 }
+                catch (ArgumentException ex)
+                {
+                    MessageBox.Show(ex.Message);
+                }
             }
         }
         /// <summary>
diff --git a/base/Catamaran/Catamaran/SetGeneric.cs b/base/Catamaran/Catamaran/SetGeneric.cs
index 5557eaa..c650640 100644
--- a/base/Catamaran/Catamaran/SetGeneric.cs
+++ b/base/Catamaran/Catamaran/SetGeneric.cs
@@ -43,9 +43,9 @@ namespace Catamaran.Generics
         /// </summary>
         /// <param name="car">Добавляемый катамаран</param>
         /// <returns></returns>
-        public bool Insert(T catamaran)
+        public bool Insert(T catamaran, IEqualityComparer<T?>? equal = null)
         {
-            return Insert(catamaran, 0);
+            return Insert(catamaran, 0, equal);
         }
         /// <summary>
         /// Добавление объекта в набор на конкретную позицию
@@ -53,13 +53,16 @@ namespace Catamaran.Generics
         /// <param name="boat">Добавляемая лодка</param>
         /// <param name="position">Позиция</param>
         /// <returns></returns>
-        public bool Insert(T catamaran, int position)
+        public bool Insert(T catamaran, int position, IEqualityComparer<T?>? equal = null)
         {
             if (position < 0 || position >= _maxCount)
                 throw new CatamaranNotFoundException(position);
 
             if (Count >= _maxCount)
                 throw new StorageOverflowException(_maxCount);
+
+            if (equal != null && _places.Contains(catamaran, equal))
+                throw new ArgumentException("Данный объект уже есть в коллекции");
             _places.Insert(0, catamaran);
             return true;
         }