Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/DamMStabDoc.cs
===================================================================
diff -u -r3150 -r3152
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/DamMStabDoc.cs	(.../DamMStabDoc.cs)	(revision 3150)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/DamMStabDoc.cs	(.../DamMStabDoc.cs)	(revision 3152)
@@ -548,16 +548,28 @@
         
         private string materialForShoulderField;
         
-        private string isDrySituationField;
+        private bool isDrySituationField;
         
-        private string pLLineAssignmentField;
+        private bool isDrySituationFieldSpecified;
         
-        private string intrusionVerticalWaterPressureField;
+        private PlLineAssignment pLLineAssignmentField;
         
-        private string penetrationLengthField;
+        private bool pLLineAssignmentFieldSpecified;
         
-        private string isDesignField;
+        private double intrusionVerticalWaterPressureField;
         
+        private bool intrusionVerticalWaterPressureFieldSpecified;
+        
+        private double penetrationLengthField;
+        
+        private bool isDesignField;
+        
+        private bool isDesignFieldSpecified;
+        
+        private bool isUseOriginalPLLineAssignmentsField;
+        
+        private bool isUseOriginalPLLineAssignmentsFieldSpecified;
+        
         /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
         public SoilGeometryType SoilGeometryType {
@@ -615,7 +627,7 @@
         
         /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string IsDrySituation {
+        public bool IsDrySituation {
             get {
                 return this.isDrySituationField;
             }
@@ -625,8 +637,19 @@
         }
         
         /// <remarks/>
+        [System.Xml.Serialization.XmlIgnoreAttribute()]
+        public bool IsDrySituationSpecified {
+            get {
+                return this.isDrySituationFieldSpecified;
+            }
+            set {
+                this.isDrySituationFieldSpecified = value;
+            }
+        }
+        
+        /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string PLLineAssignment {
+        public PlLineAssignment PLLineAssignment {
             get {
                 return this.pLLineAssignmentField;
             }
@@ -636,8 +659,19 @@
         }
         
         /// <remarks/>
+        [System.Xml.Serialization.XmlIgnoreAttribute()]
+        public bool PLLineAssignmentSpecified {
+            get {
+                return this.pLLineAssignmentFieldSpecified;
+            }
+            set {
+                this.pLLineAssignmentFieldSpecified = value;
+            }
+        }
+        
+        /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string IntrusionVerticalWaterPressure {
+        public double IntrusionVerticalWaterPressure {
             get {
                 return this.intrusionVerticalWaterPressureField;
             }
@@ -647,8 +681,19 @@
         }
         
         /// <remarks/>
+        [System.Xml.Serialization.XmlIgnoreAttribute()]
+        public bool IntrusionVerticalWaterPressureSpecified {
+            get {
+                return this.intrusionVerticalWaterPressureFieldSpecified;
+            }
+            set {
+                this.intrusionVerticalWaterPressureFieldSpecified = value;
+            }
+        }
+        
+        /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string PenetrationLength {
+        public double PenetrationLength {
             get {
                 return this.penetrationLengthField;
             }
@@ -659,14 +704,47 @@
         
         /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string IsDesign {
+        public bool IsDesign {
             get {
                 return this.isDesignField;
             }
             set {
                 this.isDesignField = value;
             }
         }
+        
+        /// <remarks/>
+        [System.Xml.Serialization.XmlIgnoreAttribute()]
+        public bool IsDesignSpecified {
+            get {
+                return this.isDesignFieldSpecified;
+            }
+            set {
+                this.isDesignFieldSpecified = value;
+            }
+        }
+        
+        /// <remarks/>
+        [System.Xml.Serialization.XmlAttributeAttribute()]
+        public bool IsUseOriginalPLLineAssignments {
+            get {
+                return this.isUseOriginalPLLineAssignmentsField;
+            }
+            set {
+                this.isUseOriginalPLLineAssignmentsField = value;
+            }
+        }
+        
+        /// <remarks/>
+        [System.Xml.Serialization.XmlIgnoreAttribute()]
+        public bool IsUseOriginalPLLineAssignmentsSpecified {
+            get {
+                return this.isUseOriginalPLLineAssignmentsFieldSpecified;
+            }
+            set {
+                this.isUseOriginalPLLineAssignmentsFieldSpecified = value;
+            }
+        }
     }
     
     /// <remarks/>
@@ -684,25 +762,43 @@
     /// <remarks/>
     [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.8.3928.0")]
     [System.SerializableAttribute()]
+    public enum PlLineAssignment {
+        
+        /// <remarks/>
+        NoPlLines,
+        
+        /// <remarks/>
+        ExpertKnowledge,
+        
+        /// <remarks/>
+        DikeFlow,
+        
+        /// <remarks/>
+        OrginalPlLines,
+    }
+    
+    /// <remarks/>
+    [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.8.3928.0")]
+    [System.SerializableAttribute()]
     [System.Diagnostics.DebuggerStepThroughAttribute()]
     [System.ComponentModel.DesignerCategoryAttribute("code")]
     [System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true)]
     [System.Xml.Serialization.XmlRootAttribute(Namespace="", IsNullable=true)]
     public partial class tnsbPrefixHorizontalBalanceArea {
         
-        private string xLeftField;
+        private double xLeftField;
         
-        private string xRightField;
+        private double xRightField;
         
-        private string yTopField;
+        private double yTopField;
         
-        private string yBottomField;
+        private double yBottomField;
         
-        private string planeCountField;
+        private int planeCountField;
         
         /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string XLeft {
+        public double XLeft {
             get {
                 return this.xLeftField;
             }
@@ -713,7 +809,7 @@
         
         /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string XRight {
+        public double XRight {
             get {
                 return this.xRightField;
             }
@@ -724,7 +820,7 @@
         
         /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string YTop {
+        public double YTop {
             get {
                 return this.yTopField;
             }
@@ -735,7 +831,7 @@
         
         /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string YBottom {
+        public double YBottom {
             get {
                 return this.yBottomField;
             }
@@ -746,7 +842,7 @@
         
         /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
-        public string PlaneCount {
+        public int PlaneCount {
             get {
                 return this.planeCountField;
             }
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/Deltares.LayerOnSlopeTool.Io.csproj
===================================================================
diff -u -r3149 -r3152
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/Deltares.LayerOnSlopeTool.Io.csproj	(.../Deltares.LayerOnSlopeTool.Io.csproj)	(revision 3149)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/Deltares.LayerOnSlopeTool.Io.csproj	(.../Deltares.LayerOnSlopeTool.Io.csproj)	(revision 3152)
@@ -48,6 +48,7 @@
     <Compile Include="ExtendedStringWriter.cs" />
     <Compile Include="FillIoDamMStabDocFromXml.cs" />
     <Compile Include="FillXmlDamMStabDocFromIo.cs" />
+    <Compile Include="IoHorizontalBalanceArea.cs" />
     <Compile Include="IoCalculationOptions.cs" />
     <Compile Include="IoCharacteristicPoint.cs" />
     <Compile Include="IoDamMStabDocSerializer.cs" />
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillXmlDamMStabDocFromIo.cs
===================================================================
diff -u -r3150 -r3152
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillXmlDamMStabDocFromIo.cs	(.../FillXmlDamMStabDocFromIo.cs)	(revision 3150)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillXmlDamMStabDocFromIo.cs	(.../FillXmlDamMStabDocFromIo.cs)	(revision 3152)
@@ -62,9 +62,21 @@
             xmlDamMStabDoc.tnsPrefixDamMStabInput.tnsbPrefixTrafficLoad = new tnsbPrefixTrafficLoad();
             TransferTrafficLoad(ioMStabDamDoc.MStabInput.TrafficLoad, xmlDamMStabDoc.tnsPrefixDamMStabInput.tnsbPrefixTrafficLoad);
 
+            xmlDamMStabDoc.tnsPrefixDamMStabInput.tnsbPrefixHorizontalBalanceArea = new tnsbPrefixHorizontalBalanceArea();
+            TransferHorizontalBalanceArea(ioMStabDamDoc.MStabInput.HorizontalBalanceArea, xmlDamMStabDoc.tnsPrefixDamMStabInput.tnsbPrefixHorizontalBalanceArea);
+
             return xmlDamMStabDoc;
         }
 
+        private static void TransferHorizontalBalanceArea(IoHorizontalBalanceArea ioHorizontalBalanceArea, tnsbPrefixHorizontalBalanceArea xmlHorizontalBalanceArea)
+        {
+            xmlHorizontalBalanceArea.XLeft = ioHorizontalBalanceArea.XLeft;
+            xmlHorizontalBalanceArea.XRight = ioHorizontalBalanceArea.XRight;
+            xmlHorizontalBalanceArea.YTop = ioHorizontalBalanceArea.YTop;
+            xmlHorizontalBalanceArea.YBottom = ioHorizontalBalanceArea.YBottom;
+            xmlHorizontalBalanceArea.PlaneCount = ioHorizontalBalanceArea.PlaneCount;
+        }
+
         private static void TransferTrafficLoad(IoTrafficLoad ioTrafficLoad, tnsbPrefixTrafficLoad xmlTrafficLoad)
         {
             xmlTrafficLoad.XCoordinateAtRiver = ioTrafficLoad.XCoordinateAtRiver;
@@ -142,6 +154,7 @@
             xmlGeometryCreationOptions.SoilGeometry2DFilename = ioGeometryCreationOptions.SoilGeometry2DFilename;
             xmlGeometryCreationOptions.SoilGeometryType = ioGeometryCreationOptions.SoilGeometryType;
             xmlGeometryCreationOptions.XOffsetSoilGeometry2DOrigin = ioGeometryCreationOptions.XOffsetSoilGeometry2DOrigin;
+            xmlGeometryCreationOptions.PenetrationLength = ioGeometryCreationOptions.PenetrationLength;
         }
     }
 }
\ No newline at end of file
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io.Tests/IoDamMStabDocSeriliazerTests.cs
===================================================================
diff -u -r3150 -r3152
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io.Tests/IoDamMStabDocSeriliazerTests.cs	(.../IoDamMStabDocSeriliazerTests.cs)	(revision 3150)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io.Tests/IoDamMStabDocSeriliazerTests.cs	(.../IoDamMStabDocSeriliazerTests.cs)	(revision 3152)
@@ -71,10 +71,21 @@
             FillPlLines(ioMStabDamDoc.MStabInput.ExternalPlLines, xRightBoundary, xLeftBoundary, yDeep);
             FillCalculationOptions(ioMStabDamDoc.MStabInput.CalculationOptions);
             FillTrafficLoad(ioMStabDamDoc.MStabInput.TrafficLoad);
+            FillHoriontalBalanceArea(ioMStabDamDoc.MStabInput.HorizontalBalanceArea);
 
             return ioMStabDamDoc;
         }
 
+        private void FillHoriontalBalanceArea(IoHorizontalBalanceArea horizontalBalanceArea)
+        {
+            horizontalBalanceArea.XLeft = 4.0;
+            horizontalBalanceArea.XRight = 6.0;
+            horizontalBalanceArea.YTop = 3.5;
+            horizontalBalanceArea.YBottom = 2.5;
+            horizontalBalanceArea.PlaneCount = 8;
+
+        }
+
         private void FillTrafficLoad(IoTrafficLoad trafficLoad)
         {
             trafficLoad.XCoordinateAtRiver = 5.2;
@@ -247,6 +258,7 @@
             geometryCreationOptions.SoilGeometry2DFilename = "Geometry2DFilename";
             geometryCreationOptions.SoilGeometryType = SoilGeometryType.SoilGeometry2D;
             geometryCreationOptions.XOffsetSoilGeometry2DOrigin = 1.1;
+            geometryCreationOptions.PenetrationLength = 0.8;
         }
     }
 }
\ No newline at end of file
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillIoDamMStabDocFromXml.cs
===================================================================
diff -u -r3150 -r3152
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillIoDamMStabDocFromXml.cs	(.../FillIoDamMStabDocFromXml.cs)	(revision 3150)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillIoDamMStabDocFromXml.cs	(.../FillIoDamMStabDocFromXml.cs)	(revision 3152)
@@ -41,9 +41,19 @@
             TransferPlLines(xmlMStabDamDoc.tnsPrefixDamMStabInput.tnsbPrefixExternalPLLines, ioMStabDamDoc.MStabInput.ExternalPlLines);
             TransferCalculationOptions(xmlMStabDamDoc.tnsPrefixDamMStabInput.tnsbPrefixCalculationOptions, ioMStabDamDoc.MStabInput.CalculationOptions);
             TransferTrafficLoad(xmlMStabDamDoc.tnsPrefixDamMStabInput.tnsbPrefixTrafficLoad, ioMStabDamDoc.MStabInput.TrafficLoad);
+            TransferHorizontalBalanceArea(xmlMStabDamDoc.tnsPrefixDamMStabInput.tnsbPrefixHorizontalBalanceArea, ioMStabDamDoc.MStabInput.HorizontalBalanceArea);
             return ioMStabDamDoc;
         }
 
+        private static void TransferHorizontalBalanceArea(tnsbPrefixHorizontalBalanceArea xmlHorizontalBalanceArea, IoHorizontalBalanceArea ioHorizontalBalanceArea)
+        {
+            ioHorizontalBalanceArea.XLeft = xmlHorizontalBalanceArea.XLeft;
+            ioHorizontalBalanceArea.XRight = xmlHorizontalBalanceArea.XRight;
+            ioHorizontalBalanceArea.YTop = xmlHorizontalBalanceArea.YTop;
+            ioHorizontalBalanceArea.YBottom = xmlHorizontalBalanceArea.YBottom;
+            ioHorizontalBalanceArea.PlaneCount = xmlHorizontalBalanceArea.PlaneCount;
+        }
+
         private static void TransferTrafficLoad(tnsbPrefixTrafficLoad xmlTrafficLoad, IoTrafficLoad ioTrafficLoad)
         {
             ioTrafficLoad.XCoordinateAtPolder = xmlTrafficLoad.XCoordinateAtPolder;
@@ -125,6 +135,7 @@
             geometryCreationOptions.SoilGeometry2DFilename = xmlGeometryCreationOptions.SoilGeometry2DFilename;
             geometryCreationOptions.SoilGeometryType = xmlGeometryCreationOptions.SoilGeometryType;
             geometryCreationOptions.XOffsetSoilGeometry2DOrigin = xmlGeometryCreationOptions.XOffsetSoilGeometry2DOrigin;
+            geometryCreationOptions.PenetrationLength = xmlGeometryCreationOptions.PenetrationLength;
         }
     }
 }
\ No newline at end of file
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoHorizontalBalanceArea.cs
===================================================================
diff -u
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoHorizontalBalanceArea.cs	(revision 0)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoHorizontalBalanceArea.cs	(revision 3152)
@@ -0,0 +1,48 @@
+// Copyright (C) Stichting Deltares 2020. All rights reserved.
+//
+// This file is part of the Dam Engine.
+//
+// The Dam Engine is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+namespace Deltares.LayerOnSlopeTool.Io
+{
+    /// <summary>Horizontal Balance Area</summary>
+    public class IoHorizontalBalanceArea
+    {
+        /// <summary>Gets or sets the x left.</summary>
+        /// <value>The x left.</value>
+        public double XLeft { get; set; }
+
+        /// <summary>Gets or sets the x right.</summary>
+        /// <value>The x right.</value>
+        public double XRight { get; set; }
+
+        /// <summary>Gets or sets the y top.</summary>
+        /// <value>The y top.</value>
+        public double YTop { get; set; }
+
+        /// <summary>Gets or sets the y bottom.</summary>
+        /// <value>The y bottom.</value>
+        public double YBottom { get; set; }
+
+        /// <summary>Gets or sets the plane count.</summary>
+        /// <value>The plane count.</value>
+        public int PlaneCount { get; set; }
+
+    }
+}
\ No newline at end of file
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoGeometryCreationOptions.cs
===================================================================
diff -u -r3137 -r3152
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoGeometryCreationOptions.cs	(.../IoGeometryCreationOptions.cs)	(revision 3137)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoGeometryCreationOptions.cs	(.../IoGeometryCreationOptions.cs)	(revision 3152)
@@ -39,5 +39,9 @@
         /// <summary>Gets or sets the material for dike.</summary>
         /// <value>The material for dike.</value>
         public string MaterialForDike { get; set; }
+
+        /// <summary>Gets or sets the length of the penetration.</summary>
+        /// <value>The length of the penetration.</value>
+        public double PenetrationLength { get; set; }
     }
 }
\ No newline at end of file
Index: DamTools/LayerOnSlopeTool/trunk/xsd/DamMStabDefinitions.xsd
===================================================================
diff -u -r3150 -r3152
--- DamTools/LayerOnSlopeTool/trunk/xsd/DamMStabDefinitions.xsd	(.../DamMStabDefinitions.xsd)	(revision 3150)
+++ DamTools/LayerOnSlopeTool/trunk/xsd/DamMStabDefinitions.xsd	(.../DamMStabDefinitions.xsd)	(revision 3152)
@@ -77,20 +77,21 @@
       <xs:attribute name="XOffsetSoilGeometry2DOrigin" type="xs:double" use="required" />
       <xs:attribute name="MaterialForDike" type="xs:string" use="required" />
       <xs:attribute name="MaterialForShoulder" type="xs:string" use="optional" />
-      <xs:attribute name="IsDrySituation" type="xs:string" use="optional" />
-      <xs:attribute name="PLLineAssignment" type="xs:string" use="optional" />
-      <xs:attribute name="IntrusionVerticalWaterPressure" type="xs:string" use="optional" />
-      <xs:attribute name="PenetrationLength" type="xs:string" use="optional" />
-      <xs:attribute name="IsDesign" type="xs:string" use="optional" />
+      <xs:attribute name="IsDrySituation" type="xs:boolean" use="optional" />
+      <xs:attribute name="PLLineAssignment" type="PlLineAssignment" use="optional" />
+      <xs:attribute name="IntrusionVerticalWaterPressure" type="xs:double" use="optional" />
+      <xs:attribute name="PenetrationLength" type="xs:double" use="required" />
+      <xs:attribute name="IsDesign" type="xs:boolean" use="optional" />
+      <xs:attribute name="IsUseOriginalPLLineAssignments" type="xs:boolean" />
     </xs:complexType>
   </xs:element>
   <xs:element name="tnsbPrefixHorizontalBalanceArea" nillable="true">
     <xs:complexType>
-      <xs:attribute name="XLeft" type="xs:string" use="optional" />
-      <xs:attribute name="XRight" type="xs:string" use="optional" />
-      <xs:attribute name="YTop" type="xs:string" use="optional" />
-      <xs:attribute name="YBottom" type="xs:string" use="optional" />
-      <xs:attribute name="PlaneCount" type="xs:string" use="optional" />
+      <xs:attribute name="XLeft" type="xs:double" use="required" />
+      <xs:attribute name="XRight" type="xs:double" use="required" />
+      <xs:attribute name="YTop" type="xs:double" use="required" />
+      <xs:attribute name="YBottom" type="xs:double" use="required" />
+      <xs:attribute name="PlaneCount" type="xs:int" use="required" />
     </xs:complexType>
   </xs:element>
   <xs:element name="tnsbPrefixSlipCircleDefinition">
@@ -176,4 +177,12 @@
       <xs:enumeration value="ForbiddenZone" />
     </xs:restriction>
   </xs:simpleType>
+  <xs:simpleType name="PlLineAssignment">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="NoPlLines" />
+      <xs:enumeration value="ExpertKnowledge" />
+      <xs:enumeration value="DikeFlow" />
+      <xs:enumeration value="OrginalPlLines" />
+    </xs:restriction>
+  </xs:simpleType>
 </xs:schema>
\ No newline at end of file
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.StiFileCreator/StiFileCreator.cs
===================================================================
diff -u -r3150 -r3152
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.StiFileCreator/StiFileCreator.cs	(.../StiFileCreator.cs)	(revision 3150)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.StiFileCreator/StiFileCreator.cs	(.../StiFileCreator.cs)	(revision 3152)
@@ -64,6 +64,8 @@
             ioMStabDamDoc.MStabInput.GeometryCreationOptions.MaterialForDike = stiFileCreatorInput.DikeMaterialName;
             ioMStabDamDoc.MStabInput.GeometryCreationOptions.XOffsetSoilGeometry2DOrigin = stiFileCreatorInput.XOffset;
             ioMStabDamDoc.MStabInput.GeometryCreationOptions.SoilGeometry2DFilename = stiFileCreatorInput.InputFilename;
+            ioMStabDamDoc.MStabInput.CalculationOptions.ZonesType = ZonesType.NoZones;
+            ioMStabDamDoc.MStabInput.TrafficLoad.DegreeOfConsolidationSpecified = false;
             double leftSide = stiFileCreatorInput.SurfaceLine.SurfaceLinePoints[0].XCoordinate;
             double rightSide = stiFileCreatorInput.SurfaceLine.SurfaceLinePoints[stiFileCreatorInput.SurfaceLine.SurfaceLinePoints.Count - 1].XCoordinate;
             double yLevel = -10;
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoDamMStabInput.cs
===================================================================
diff -u -r3147 -r3152
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoDamMStabInput.cs	(.../IoDamMStabInput.cs)	(revision 3147)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoDamMStabInput.cs	(.../IoDamMStabInput.cs)	(revision 3152)
@@ -62,5 +62,8 @@
         /// <value>The geometry creation options.</value>
         public IoGeometryCreationOptions GeometryCreationOptions { get; } = new IoGeometryCreationOptions();
 
+        /// <summary>Gets the horizontal balance area.</summary>
+        /// <value>The horizontal balance area.</value>
+        public IoHorizontalBalanceArea HorizontalBalanceArea { get; } = new IoHorizontalBalanceArea();
     }
 }
\ No newline at end of file