diff --git a/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs b/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs
index 183df204..6d237e28 100644
--- a/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs
+++ b/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs
@@ -26,6 +26,7 @@ using System.Data;
 using System.Data.Common;
 using System.Diagnostics;
 using System.Runtime.InteropServices;
+using System.Security.Cryptography;
 using System.Xml.Linq;
 using IEC61850.Client;
 using IEC61850.Common;
@@ -927,6 +928,9 @@ namespace IEC61850
         {
             [DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
             static extern IntPtr DataObject_create(string name, IntPtr parent, int arrayElements);
+           
+            [DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
+            static extern IntPtr ModelNode_getChildWithFc(IntPtr self, string objectReference, int fc);
 
             internal DataObject(IntPtr self, ModelNode parent) : base(self)
             {
@@ -944,6 +948,28 @@ namespace IEC61850
                 self = DataObject_create (name, parent.self, arrayElements);
             }
 
+            /// <summary>
+            /// return a child model node with a given functional constraint
+            /// Sometimes the name is not enough to identify a model node.This is the case when
+            /// editable setting groups are used.In this case the setting group members have two different
+            /// model nodes associated that differ in their FC (SG and SE).
+            /// </summary>
+            /// <param name="objectReference">the name of the child model node</param>
+            /// <param name="fc">the functional constraint of the model node</param>
+            /// <returns>the model node instance or NULL if model node does not exist.</returns>
+            public DataAttribute GetChildWithFc(string objRef, FunctionalConstraint fc)
+            {
+                DataAttribute dataAttribute = null;
+                IntPtr da = ModelNode_getChildWithFc(this.self, objRef, (int)fc);
+
+                if (da != IntPtr.Zero)
+                {
+                    dataAttribute = new DataAttribute(da, this);
+                }
+
+                return dataAttribute;
+            }
+
         }
 
         public class DataAttribute : ModelNode
diff --git a/dotnet/server_example_access_control/Program.cs b/dotnet/server_example_access_control/Program.cs
index 9b4a3c5a..7a01724f 100644
--- a/dotnet/server_example_access_control/Program.cs
+++ b/dotnet/server_example_access_control/Program.cs
@@ -247,20 +247,40 @@ namespace server_access_control
 
             void LoadActiveSgValues(int actSG)
             {
+                
                 DataAttribute dataAttribute = (DataAttribute)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.StrVal.setMag.f");
                 iedServer.UpdateFloatAttributeValue(dataAttribute, ptoc1Settings[actSG - 1].strVal);
-                dataAttribute = (DataAttribute)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.OpDlTmms.setVal");
+                dataAttribute = (DataAttribute)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.opDlTmms.setVal");
                 iedServer.UpdateInt32AttributeValue(dataAttribute, ptoc1Settings[actSG - 1].opDlTmms);
-                dataAttribute = (DataAttribute)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.RsDlTmms.setVal");
+                dataAttribute = (DataAttribute)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.rsDlTmms.setVal");
                 iedServer.UpdateInt32AttributeValue(dataAttribute, ptoc1Settings[actSG - 1].rsDlTmms);
-                dataAttribute = (DataAttribute)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.RstTms.setVal");
+                dataAttribute = (DataAttribute)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.rstTms.setVal");
                 iedServer.UpdateInt32AttributeValue(dataAttribute, ptoc1Settings[actSG - 1].rstTms);
             }
 
+            void LoadEditSgValues(int actSG)
+            {
+                DataObject strVal = (DataObject)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.StrVal");
+                DataAttribute setMagF = strVal.GetChildWithFc("setMag.f", FunctionalConstraint.SE);
+                iedServer.UpdateFloatAttributeValue(setMagF, ptoc1Settings[actSG - 1].strVal);
+
+                DataObject opDlTmms = (DataObject)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.OpDlTmms");
+                DataAttribute setVal = opDlTmms.GetChildWithFc("setVal", FunctionalConstraint.SE);
+                iedServer.UpdateInt32AttributeValue(setVal, ptoc1Settings[actSG - 1].opDlTmms);
+
+                DataObject rsDlTmms = (DataObject)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.RsDlTmms");
+                DataAttribute rsDlTmms_setVal = rsDlTmms.GetChildWithFc("setVal", FunctionalConstraint.SE);
+                iedServer.UpdateInt32AttributeValue(rsDlTmms_setVal, ptoc1Settings[actSG - 1].rsDlTmms);
+
+                DataObject rstTms = (DataObject)iedModel.GetModelNodeByShortObjectReference("GenericIO/PTOC1.RstTms");
+                DataAttribute rstTms_setVal = rstTms.GetChildWithFc("setVal", FunctionalConstraint.SE);
+                iedServer.UpdateInt32AttributeValue(rstTms_setVal, ptoc1Settings[actSG - 1].rstTms);
+            }
+
             bool activeSGChangedHandler(object parameter, SettingGroupControlBlock sgcb, uint newActSg, ClientConnection connection)
             {
                 Console.WriteLine("Switch to setting group "+ newActSg +"\n");
-                LoadActiveSgValues(Convert.ToInt32(newActSg));
+
                 return true;
             }
 
@@ -268,6 +288,8 @@ namespace server_access_control
             {
                 Console.WriteLine("Set edit setting group to " + newEditSg + "\n");
 
+                LoadEditSgValues(Convert.ToInt32(newEditSg));
+
                 return true;
             }