diff --git a/MainWindow.axaml.cs b/MainWindow.axaml.cs
index 6757d21..fc0a8b7 100644
--- a/MainWindow.axaml.cs
+++ b/MainWindow.axaml.cs
@@ -96,7 +96,28 @@ public partial class MainWindow : Window
 
         new ResultWindow(result, addresSetID).Show();
 
+        Settings.Save();
+        
+        //await MessageBox.Show(_instance, $"{result.Count} Einträge fehlerhaft.", "Fertig");
+    }
+    
+    private async void StartAddressShortener(KasAddressList set)
+    {
+        //var addresses = DataImport.ImportKasAddressList(path); // Ihr Code hier
 
+        var progressWindow = new ProgressWindow();
+
+        progressWindow.Show(_instance);
+
+        var processor = new AddressShortener(progressWindow);
+        await processor.Perform(set);
+
+        // foreach (var item in result)
+        // {
+        // }
+
+        progressWindow.Close();
+        Settings.Save();
         //await MessageBox.Show(_instance, $"{result.Count} Einträge fehlerhaft.", "Fertig");
     }
 
@@ -617,6 +638,7 @@ public partial class MainWindow : Window
             BtnCheck.IsEnabled = true;
             BtnCombine.IsEnabled = true;
             BtnGenerateLabels.IsEnabled = true;
+            BtnShorten.IsEnabled = true;
 
             // BtnRepair.IsEnabled = true;
             // BtnShorten.IsEnabled = true;
@@ -1086,4 +1108,16 @@ public partial class MainWindow : Window
         }
         RefreshCustomerItems();
     }
+
+    private void BtnShorten_OnClick(object? sender, RoutedEventArgs e)
+    {
+        MakeCalcManVisible();
+        if (LstCustomerAdressSets.SelectedIndex == -1)
+        {
+            MessageBox.Show(null, "Bitte zunächst ein Adress-Set auswählen", "Kein Adress-Set ausgewählt");
+            return;
+        }
+
+        StartAddressShortener((KasAddressList)LstCustomerAdressSets.SelectedItem);
+    }
 }