diff --git a/ZeroLevel/Services/Extensions/ArrayExtensions.cs b/ZeroLevel/Services/Extensions/ArrayExtensions.cs
index 6a08638..0cc355d 100644
--- a/ZeroLevel/Services/Extensions/ArrayExtensions.cs
+++ b/ZeroLevel/Services/Extensions/ArrayExtensions.cs
@@ -65,7 +65,7 @@ namespace ZeroLevel
             return false;
         }
 
-        private static bool IsEmptyLocate<T>(T[] array, T[] candidate)
+        private static bool IsEmptyLocate<T>(this T[] array, T[] candidate)
         {
             return array == null
                 || candidate == null
@@ -74,7 +74,7 @@ namespace ZeroLevel
                 || candidate.Length > array.Length;
         }
 
-        public static IEnumerable<T> GetRow<T>(T[,] array, int row)
+        public static IEnumerable<T> GetRow<T>(this T[,] array, int row)
         {
             for (int i = 0; i < array.GetLength(1); i++)
             {
@@ -82,6 +82,14 @@ namespace ZeroLevel
             }
         }
 
+        public static IEnumerable<T> GetColumn<T>(this T[,] array, int column)
+        {
+            for (int i = 0; i < array.GetLength(0); i++)
+            {
+                yield return array[i, column];
+            }
+        }
+
         public static bool Equals(byte[] first, byte[] second)
         {
             if (null == first && null == second)
diff --git a/ZeroLevel/Services/ObjectMapping/IMemberInfo.cs b/ZeroLevel/Services/ObjectMapping/IMemberInfo.cs
index 1174714..abc58c4 100644
--- a/ZeroLevel/Services/ObjectMapping/IMemberInfo.cs
+++ b/ZeroLevel/Services/ObjectMapping/IMemberInfo.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Reflection;
 
 namespace ZeroLevel.Services.ObjectMapping
 {
@@ -13,5 +14,6 @@ namespace ZeroLevel.Services.ObjectMapping
         Type ClrType { get; }
         Action<object, object> Setter { get; }
         Func<object, object> Getter { get; }
+        MemberInfo Original { get; }
     }
 }
\ No newline at end of file
diff --git a/ZeroLevel/Services/ObjectMapping/MapFieldInfo.cs b/ZeroLevel/Services/ObjectMapping/MapFieldInfo.cs
index e75c762..6eddc28 100644
--- a/ZeroLevel/Services/ObjectMapping/MapFieldInfo.cs
+++ b/ZeroLevel/Services/ObjectMapping/MapFieldInfo.cs
@@ -12,8 +12,9 @@ namespace ZeroLevel.Services.ObjectMapping
         public bool IsField { get; set; }
         public string Name { get; set; }
         public Type ClrType { get; set; }
-        public Action<object, object> Setter { get; set; }
-        public Func<object, object> Getter { get; set; }
+        public Action<object, object> Setter { get; private set; }
+        public Func<object, object> Getter { get; private set; }
+        public MemberInfo Original { get; private set; }
 
         #endregion Properties
 
@@ -57,7 +58,8 @@ namespace ZeroLevel.Services.ObjectMapping
         {
             var field = new MapMemberInfo(TypeGetterSetterBuilder.BuildSetter(fieldInfo), TypeGetterSetterBuilder.BuildGetter(fieldInfo))
             {
-                Name = fieldInfo.Name
+                Name = fieldInfo.Name,
+                Original = fieldInfo
             };
             field.IsField = true;
             var type = fieldInfo.FieldType;
@@ -69,7 +71,8 @@ namespace ZeroLevel.Services.ObjectMapping
         {
             var field = new MapMemberInfo(TypeGetterSetterBuilder.BuildSetter(propertyInfo), TypeGetterSetterBuilder.BuildGetter(propertyInfo))
             {
-                Name = propertyInfo.Name
+                Name = propertyInfo.Name,
+                Original = propertyInfo
             };
             field.IsField = false;
             var type = propertyInfo.PropertyType;
diff --git a/ZeroLevel/ZeroLevel.csproj b/ZeroLevel/ZeroLevel.csproj
index 9f628bd..83ab122 100644
--- a/ZeroLevel/ZeroLevel.csproj
+++ b/ZeroLevel/ZeroLevel.csproj
@@ -6,16 +6,16 @@
 </Description>
     <Authors>ogoun</Authors>
     <Company>ogoun</Company>
-    <AssemblyVersion>3.3.5.3</AssemblyVersion>
-    <PackageReleaseNotes>Collection lazy deserialization</PackageReleaseNotes>
+    <AssemblyVersion>3.3.5.5</AssemblyVersion>
+    <PackageReleaseNotes>Update TypeMapper</PackageReleaseNotes>
     <PackageProjectUrl>https://github.com/ogoun/Zero/wiki</PackageProjectUrl>
     <Copyright>Copyright Ogoun 2021</Copyright>
     <PackageLicenseUrl></PackageLicenseUrl>
     <PackageIconUrl></PackageIconUrl>
     <RepositoryUrl>https://github.com/ogoun/Zero</RepositoryUrl>
     <RepositoryType>GitHub</RepositoryType>
-    <Version>3.3.5.3</Version>
-    <FileVersion>3.3.5.3</FileVersion>
+    <Version>3.3.5.5</Version>
+    <FileVersion>3.3.5.5</FileVersion>
     <Platforms>AnyCPU;x64;x86</Platforms>
     <PackageIcon>zero.png</PackageIcon>
   </PropertyGroup>