Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Xsd/DamMStabInputDefinition.xsd
===================================================================
diff -u -r5722 -r5724
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Xsd/DamMStabInputDefinition.xsd	(.../DamMStabInputDefinition.xsd)	(revision 5722)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Xsd/DamMStabInputDefinition.xsd	(.../DamMStabInputDefinition.xsd)	(revision 5724)
@@ -223,6 +223,7 @@
                             <xs:restriction base="xs:string">
                                 <xs:enumeration value="OnBoundaryLines"/>
                                 <xs:enumeration value="Specified"/>
+                                <xs:enumeration value="Automatic"/>
                             </xs:restriction>
                         </xs:simpleType>
                     </xs:attribute>
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamEngineIo/ConversionHelper.cs
===================================================================
diff -u -r4813 -r5724
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamEngineIo/ConversionHelper.cs	(.../ConversionHelper.cs)	(revision 4813)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamEngineIo/ConversionHelper.cs	(.../ConversionHelper.cs)	(revision 5724)
@@ -104,14 +104,19 @@
     public const int InputGridTypeSpecified = 1;
 
     /// <summary>
-    ///     The input tangent lines on boundaty lines
+    ///     The input tangent lines on boundary lines
     /// </summary>
-    public const int InputTangentLinesOnBoundatyLines = 0;
+    public const int InputTangentLinesOnBoundaryLines = 0;
 
     /// <summary>
     ///     The input tangent lines specified
     /// </summary>
     public const int InputTangentLinesSpecified = 1;
+    
+    /// <summary>
+    ///     The input tangent lines automatic
+    /// </summary>
+    public const int InputTangentLinesAutomatic = 2;
 
     /// <summary>
     ///     The load situation dry
@@ -1222,10 +1227,13 @@
         var translationTable = new Dictionary<TangentLinesDefinition, int>
         {
             {
-                TangentLinesDefinition.OnBoundaryLines, InputGridTypeAutomatic
+                TangentLinesDefinition.OnBoundaryLines, InputTangentLinesOnBoundaryLines
             },
             {
-                TangentLinesDefinition.Specified, InputGridTypeSpecified
+                TangentLinesDefinition.Specified, InputTangentLinesSpecified
+            },
+            {
+                TangentLinesDefinition.Automatic, InputTangentLinesAutomatic
             }
         };
         return translationTable[tangentLineType];
@@ -1241,10 +1249,13 @@
         var translationTable = new Dictionary<int, TangentLinesDefinition>
         {
             {
-                InputGridTypeAutomatic, TangentLinesDefinition.OnBoundaryLines
+                InputTangentLinesOnBoundaryLines, TangentLinesDefinition.OnBoundaryLines
             },
             {
-                InputGridTypeSpecified, TangentLinesDefinition.Specified
+                InputTangentLinesSpecified, TangentLinesDefinition.Specified
+            },
+            {
+                InputTangentLinesAutomatic, TangentLinesDefinition.Automatic
             }
         };
         return translationTable[tangentLineType];
Index: DamClients/DamUI/trunk/src/Dam/Deltares.Dam.Tests/DamEngineIo/ConversionHelperTests.cs
===================================================================
diff -u -r4653 -r5724
--- DamClients/DamUI/trunk/src/Dam/Deltares.Dam.Tests/DamEngineIo/ConversionHelperTests.cs	(.../ConversionHelperTests.cs)	(revision 4653)
+++ DamClients/DamUI/trunk/src/Dam/Deltares.Dam.Tests/DamEngineIo/ConversionHelperTests.cs	(.../ConversionHelperTests.cs)	(revision 5724)
@@ -322,16 +322,18 @@
     }
 
     [Test]
-    [TestCase(TangentLinesDefinition.OnBoundaryLines, ConversionHelper.InputTangentLinesOnBoundatyLines)]
+    [TestCase(TangentLinesDefinition.OnBoundaryLines, ConversionHelper.InputTangentLinesOnBoundaryLines)]
     [TestCase(TangentLinesDefinition.Specified, ConversionHelper.InputTangentLinesSpecified)]
+    [TestCase(TangentLinesDefinition.Automatic, ConversionHelper.InputTangentLinesAutomatic)]
     public void CanConvertToInputTangentLinesDefinition(TangentLinesDefinition tangentLineType, int inputTangentLineType)
     {
         Assert.That(ConversionHelper.ConvertToInputTangentLinesDefinition(tangentLineType), Is.EqualTo(inputTangentLineType));
     }
 
     [Test]
-    [TestCase(ConversionHelper.InputTangentLinesOnBoundatyLines, TangentLinesDefinition.OnBoundaryLines)]
+    [TestCase(ConversionHelper.InputTangentLinesOnBoundaryLines, TangentLinesDefinition.OnBoundaryLines)]
     [TestCase(ConversionHelper.InputTangentLinesSpecified, TangentLinesDefinition.Specified)]
+    [TestCase(ConversionHelper.InputTangentLinesAutomatic, TangentLinesDefinition.Automatic)]
     public void CanConvertToTangentLinesDefinition(int inputTangentLineType, TangentLinesDefinition tangentLineType)
     {
         Assert.That(ConversionHelper.ConvertToTangentLinesDefinition(inputTangentLineType), Is.EqualTo(tangentLineType));
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/MStabParameters.cs
===================================================================
diff -u -r5711 -r5724
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/MStabParameters.cs	(.../MStabParameters.cs)	(revision 5711)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/MStabParameters.cs	(.../MStabParameters.cs)	(revision 5724)
@@ -33,7 +33,8 @@
 public enum TangentLinesDefinition
 {
     OnBoundaryLines = 0,
-    Specified = 1
+    Specified = 1,
+    Automatic = 2
 }
 
 public enum GridSizeDetermination