diff --git a/Test/Sample/OpenModelFromCloud.cs b/Test/Sample/OpenModelFromCloud.cs
index 3802d34..49a282f 100644
--- a/Test/Sample/OpenModelFromCloud.cs
+++ b/Test/Sample/OpenModelFromCloud.cs
@@ -31,7 +31,6 @@ public Result Execute(ExternalCommandData commandData, ref string message, Eleme
                 var records = csv.GetRecords<DataInput>().ToList();
                 dataInputs.AddRange(records);
             }
-
         }
 
         string csvFamily = BrowsePath();
@@ -50,7 +49,14 @@ public Result Execute(ExternalCommandData commandData, ref string message, Eleme
                 UpdateUFCodeBaseFamily updateUfCodeBaseFamily = new UpdateUFCodeBaseFamily();
                 updateUfCodeBaseFamily.Execute(document, csvFamily);
                 // sync model
-                doc.SynchronizeWithCentral(new TransactWithCentralOptions(), new SynchronizeWithCentralOptions());
+                TransactWithCentralOptions twcOpts = new TransactWithCentralOptions();
+                SynchronizeWithCentralOptions syncopt = new SynchronizeWithCentralOptions();
+                RelinquishOptions rOptions = new RelinquishOptions(true);
+                rOptions.UserWorksets = true;
+                syncopt.SetRelinquishOptions(rOptions);
+                syncopt.SaveLocalBefore = false;
+                syncopt.SaveLocalAfter = false;
+                doc.SynchronizeWithCentral(twcOpts, syncopt);
                 OpenLogFileAndWrite("Sync model to central is done");
                 // close model
                 doc.Close(false);
@@ -62,9 +68,9 @@ public Result Execute(ExternalCommandData commandData, ref string message, Eleme
         }
 
         return Result.Succeeded;
-
     }
-    public  void OpenLogFileAndWrite(string message)
+
+    public void OpenLogFileAndWrite(string message)
     {
         string fileName = "log.txt";
         string logFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), fileName);
@@ -83,6 +89,7 @@ public  void OpenLogFileAndWrite(string message)
             }
         }
     }
+
     public string BrowsePath()
     {
         var dialog = new OpenFileDialog();
@@ -91,7 +98,8 @@ public string BrowsePath()
         dialog.ShowDialog();
         return dialog.FileName;
     }
-    public class  DataInput
+
+    public class DataInput
     {
         public string item_id { get; set; }
         public string item_name { get; set; }
diff --git a/Test/Sample/OpenModelFromCloudSimple.cs b/Test/Sample/OpenModelFromCloudSimple.cs
new file mode 100644
index 0000000..d241c20
--- /dev/null
+++ b/Test/Sample/OpenModelFromCloudSimple.cs
@@ -0,0 +1,72 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Net.Sockets;
+using System.Windows;
+using Autodesk.Revit.Attributes;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using CsvHelper;
+using Microsoft.Win32;
+
+namespace Test;
+
+[Transaction(TransactionMode.Manual)]
+public class OpenModelFromCloudSimple : IExternalCommand
+{
+    public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
+    {
+        // open model from acc
+        var doc = commandData.Application.ActiveUIDocument.Document;
+        string region = "US";
+        var projectGuid = new Guid("f10b5c85-fd34-435a-9206-e4a8c21d761c");
+        var modelGuid = new Guid("119d11f3-4d92-4d50-81db-0a03aa20fd82");
+        var modelPath = ModelPathUtils.ConvertCloudGUIDsToCloudPath(region, projectGuid, modelGuid);
+        // Document document = doc.Application.OpenDocumentFile(modelPath, new OpenOptions());
+        // active document
+        commandData.Application.OpenAndActivateDocument(modelPath, new OpenOptions(), false);
+        // sync model
+        // close model
+        doc.Close(false);
+
+        return Result.Succeeded;
+
+    }
+    public  void OpenLogFileAndWrite(string message)
+    {
+        string fileName = "log.txt";
+        string logFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), fileName);
+        if (!File.Exists(logFile))
+        {
+            using (StreamWriter sw = File.CreateText(logFile))
+            {
+                sw.WriteLine(message);
+            }
+        }
+        else
+        {
+            using (StreamWriter sw = File.AppendText(logFile))
+            {
+                sw.WriteLine(message);
+            }
+        }
+    }
+    public string BrowsePath()
+    {
+        var dialog = new OpenFileDialog();
+        dialog.Filter = "Revit Files (*.csv)|*.csv";
+        dialog.Title = "Select a items file";
+        dialog.ShowDialog();
+        return dialog.FileName;
+    }
+    public class  DataInput
+    {
+        public string item_id { get; set; }
+        public string item_name { get; set; }
+        public string project_guid { get; set; }
+        public string model_guid { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/Test/Test.csproj b/Test/Test.csproj
index 1d135b5..5c58d42 100644
--- a/Test/Test.csproj
+++ b/Test/Test.csproj
@@ -72,5 +72,8 @@
   <ItemGroup>
     <ProjectReference Include="..\Test2\Test2.csproj" />
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Sample\data\" />
+  </ItemGroup>
 
 </Project>