diff --git a/Elwig/App.xaml.cs b/Elwig/App.xaml.cs
index f0e4812..a6181aa 100644
--- a/Elwig/App.xaml.cs
+++ b/Elwig/App.xaml.cs
@@ -84,8 +84,8 @@ namespace Elwig {
 
             var list = new List<IScale>();
             foreach (var s in Config.Scales) {
+                var id = s[0];
                 try {
-                    var id = s[0];
                     var type = s[1]?.ToLower();
                     var model = s[2];
                     var cnx = s[3];
@@ -99,6 +99,7 @@ namespace Elwig {
                         throw new ArgumentException($"Invalid scale type: \"{type}\"");
                     }
                 } catch (Exception e) {
+                    list.Add(new InvalidScale(id));
                     MessageBox.Show($"Unable to create scale {s[0]}:\n\n{e.Message}", "Scale Error", MessageBoxButton.OK, MessageBoxImage.Error);
                 }
             }
diff --git a/Elwig/Helpers/ClientParameters.cs b/Elwig/Helpers/ClientParameters.cs
index 711db1c..3f82795 100644
--- a/Elwig/Helpers/ClientParameters.cs
+++ b/Elwig/Helpers/ClientParameters.cs
@@ -11,6 +11,9 @@ namespace Elwig.Helpers {
 
         public bool IsMatzen => Client == Type.Matzen;
         public bool IsWinzerkeller => Client == Type.Winzerkeller;
+        public bool IsWolkersdorf => Client == Type.Winzerkeller && App.ZwstId == "W";
+        public bool IsHaugsdorf => Client == Type.Winzerkeller && App.ZwstId == "H";
+        public bool IsSitzendorf => Client == Type.Winzerkeller && App.ZwstId == "S";
 
         public string NameToken;
         public string NameShort;
diff --git a/Elwig/Helpers/Weighing/InvalidScale.cs b/Elwig/Helpers/Weighing/InvalidScale.cs
new file mode 100644
index 0000000..eea7459
--- /dev/null
+++ b/Elwig/Helpers/Weighing/InvalidScale.cs
@@ -0,0 +1,44 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Weighing {
+    public class InvalidScale : IScale {
+
+        public string Manufacturer => "NONE";
+        public string Model => "NONE";
+        public string ScaleId { get; private set; }
+        public int InternalScaleNr => 0;
+        public bool IsReady => false;
+        public bool HasFillingClearance => false;
+        public int? WeightLimit => null;
+        public string? LogPath => null;
+
+        public InvalidScale(string id) {
+            ScaleId = id;
+        }
+
+        public void Dispose() {
+            GC.SuppressFinalize(this);
+        }
+
+        public Task<WeighingResult> Weigh() {
+            throw new NotImplementedException();
+        }
+
+        public Task<WeighingResult> GetCurrentWeight() {
+            throw new NotImplementedException();
+        }
+
+        public Task Empty() {
+            throw new NotImplementedException();
+        }
+
+        public Task GrantFillingClearance() {
+            throw new NotImplementedException();
+        }
+
+        public Task RevokeFillingClearance() {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/Elwig/Windows/AdministrationWindow.cs b/Elwig/Windows/AdministrationWindow.cs
index 4a32e64..20ed5fb 100644
--- a/Elwig/Windows/AdministrationWindow.cs
+++ b/Elwig/Windows/AdministrationWindow.cs
@@ -32,6 +32,7 @@ namespace Elwig.Windows {
                 LockContext = IsEditing;
             }
         }
+        protected bool DoShowWarningWindows = true;
         protected bool IsClosing { get; private set; }
 
         private TextBox[] TextBoxInputs;
@@ -363,7 +364,7 @@ namespace Elwig.Windows {
         }
 
         protected bool InputLostFocus(TextBox input, ValidationResult res, string? msg = null) {
-            if (!res.IsValid && !IsClosing && (IsEditing || IsCreating))
+            if (DoShowWarningWindows && !res.IsValid && !IsClosing && (IsEditing || IsCreating))
                 System.Windows.MessageBox.Show(res.ErrorContent.ToString(), msg ?? res.ErrorContent.ToString(), MessageBoxButton.OK, MessageBoxImage.Warning);
             return res.IsValid;
         }
diff --git a/Elwig/Windows/DeliveryAdminWindow.xaml b/Elwig/Windows/DeliveryAdminWindow.xaml
index dd461d8..de93881 100644
--- a/Elwig/Windows/DeliveryAdminWindow.xaml
+++ b/Elwig/Windows/DeliveryAdminWindow.xaml
@@ -160,10 +160,10 @@
 
                 <Label Content="Mitglied:" Margin="10,10,0,0" Grid.Column="0"/>
                 <TextBox x:Name="MgNrInput" Width="48" Grid.Row="1" Grid.Column="1" Margin="0,10,0,0" HorizontalAlignment="Left" TextAlignment="Right"
-                         TextChanged="MgNrInput_TextChanged" LostFocus="MgNrInput_LostFocus"/>
+                         TextChanged="MgNrInput_TextChanged" LostFocus="MgNrInput_LostFocus" KeyUp="Input_KeyUp"/>
                 <ComboBox x:Name="MemberInput" Grid.Column="1" Margin="53,10,10,10" IsEditable="True"
                           ItemTemplate="{StaticResource MemberAdminNameTemplate}" TextSearch.TextPath="AdministrativeName"
-                          SelectionChanged="MemberInput_SelectionChanged"/>
+                          SelectionChanged="MemberInput_SelectionChanged" KeyUp="Input_KeyUp"/>
 
                 <Label Content="Wohnort:" Margin="10,38,0,0" Grid.Column="0"/>
                 <TextBox x:Name="MemberAddressField" Grid.Column="1" Margin="0,40,10,10" FontSize="12" Height="22"
@@ -209,15 +209,15 @@
 
                 <Label Content="Sorte:" Margin="10,10,0,0" Grid.Column="0"/>
                 <TextBox x:Name="SortIdInput" Width="36" Grid.Row="1" Grid.Column="1" Margin="0,10,0,0" HorizontalAlignment="Left"
-                         TextChanged="SortIdInput_TextChanged" LostFocus="SortIdInput_LostFocus"/>
+                         TextChanged="SortIdInput_TextChanged" LostFocus="SortIdInput_LostFocus"  KeyUp="Input_KeyUp"/>
                 <ComboBox x:Name="WineVarietyInput" Grid.Row="1" Grid.Column="1" Margin="41,10,10,10"
                           ItemTemplate="{StaticResource WineVarietyTemplate}" TextSearch.TextPath="Name" 
-                          SelectionChanged="WineVarietyInput_SelectionChanged"/>
+                          SelectionChanged="WineVarietyInput_SelectionChanged" KeyUp="Input_KeyUp"/>
 
                 <Label Content="Attribute:" Margin="10,40,0,0" Grid.Column="0"/>
                 <xctk:CheckComboBox x:Name="AttributesInput" Grid.Row="1" Grid.Column="1" Margin="0,40,10,10"
                                     DisplayMemberPath="Name" Delimiter=", " AllItemsSelectedContent="Alle"
-                                    ItemSelectionChanged="AttributesInput_SelectionChanged"/>
+                                    ItemSelectionChanged="AttributesInput_SelectionChanged" KeyUp="Input_KeyUp"/>
             </Grid>
         </GroupBox>
 
@@ -246,7 +246,7 @@
                           SelectionChanged="WineQualityLevelInput_SelectionChanged"/>
 
                 <CheckBox x:Name="AbgewertetInput" Content="Abgewertet" IsEnabled="False"
-                          VerticalAlignment="Top" HorizontalAlignment="Left" Margin="0,75,10,10" Grid.Column="1"/>
+                          VerticalAlignment="Top" HorizontalAlignment="Left" Margin="10,75,10,10" Grid.Column="0" Grid.ColumnSpan="2"/>
             </Grid>
         </GroupBox>
 
diff --git a/Elwig/Windows/DeliveryAdminWindow.xaml.cs b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
index 7ffa6e4..69b0b58 100644
--- a/Elwig/Windows/DeliveryAdminWindow.xaml.cs
+++ b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
@@ -60,6 +60,8 @@ namespace Elwig.Windows {
             SearchInput.TextChanged -= SearchInput_TextChanged;
             SeasonInput.Value = Utils.CurrentLastSeason;
 
+            DoShowWarningWindows = false;
+
             if (IsReceipt) {
                 Title = "Übernahme - Elwig";
                 TodayOnlyInput.IsChecked = true;
@@ -149,7 +151,7 @@ namespace Elwig.Windows {
             ClearDefaultValues();
 
             HandPickedInput.IsChecked = null;
-            if (App.Client.IsMatzen) {
+            if (App.Client.IsMatzen || App.Client.IsWolkersdorf) {
                 GerebeltGewogenInput.IsChecked = true;
                 GerebeltGewogenInput.IsEnabled = false;
                 SetDefaultValue(GerebeltGewogenInput);
@@ -159,6 +161,8 @@ namespace Elwig.Windows {
                 UnsetDefaultValue(GerebeltGewogenInput);
             }
 
+            WineQualityLevelInput.IsEnabled = false;
+
             SetDefaultValue(HandPickedInput);
             ValidateRequiredInputs();
         }
@@ -180,6 +184,16 @@ namespace Elwig.Windows {
             CancelCreatingButton.IsEnabled = DeliveryList.SelectedItem == null || DeliveryPartList.SelectedItem == null;
         }
 
+        private void Input_KeyUp(object sender, KeyEventArgs evt) {
+            if (sender is not Control ctrl) return;
+            if (evt.Key != Key.Enter) return;
+            if (ctrl == MgNrInput || ctrl == MemberInput) {
+                SortIdInput.Focus(); SortIdInput.SelectAll();
+            } else if (ctrl == SortIdInput || ctrl == WineVarietyInput || ctrl == AttributesInput) {
+                GradationOeInput.Focus(); GradationOeInput.SelectAll();
+            }
+        }
+
         private async Task RefreshDeliveryList() {
             await RefreshDeliveryListQuery();
         }
@@ -412,7 +426,7 @@ namespace Elwig.Windows {
             await RefreshDeliveryList();
             var d = DeliveryList.SelectedItem as Delivery;
             var y = d?.Year ?? Utils.CurrentLastSeason;
-            ControlUtils.RenewItemsSource(MemberInput, await Context.Members.OrderBy(m => m.FamilyName).ThenBy(m => m.GivenName).ToListAsync(), i => (i as Member)?.MgNr);
+            ControlUtils.RenewItemsSource(MemberInput, await Context.Members.Where(m => m.IsActive || !IsReceipt).OrderBy(m => m.FamilyName).ThenBy(m => m.GivenName).ToListAsync(), i => (i as Member)?.MgNr);
             ControlUtils.RenewItemsSource(BranchInput, await Context.Branches.OrderBy(b => b.Name).ToListAsync(), i => (i as Branch)?.ZwstId);
             ControlUtils.RenewItemsSource(WineVarietyInput, await Context.WineVarieties.OrderBy(v => v.Name).ToListAsync(), i => (i as WineVar)?.SortId);
             ControlUtils.RenewItemsSource(AttributesInput, await Context.WineAttributes.Where(a => IsCreating || a.IsActive).OrderBy(a => a.Name).ToListAsync(), i => (i as WineAttr)?.AttrId);
@@ -763,8 +777,9 @@ namespace Elwig.Windows {
             InitInputs();
         }
 
-        private void CancelCreatingButton_Click(object sender, RoutedEventArgs evt) {
-            ControlUtils.RenewItemsSource(AttributesInput, Context.WineAttributes.OrderBy(a => a.Name).ToList(), i => (i as WineAttr)?.AttrId);
+        private async void CancelCreatingButton_Click(object sender, RoutedEventArgs evt) {
+            ControlUtils.RenewItemsSource(AttributesInput, await Context.WineAttributes.OrderBy(a => a.Name).ToListAsync(), i => (i as WineAttr)?.AttrId);
+            ControlUtils.RenewItemsSource(MemberInput, await Context.Members.Where(m => m.IsActive || !IsReceipt).OrderBy(m => m.FamilyName).ThenBy(m => m.GivenName).ToListAsync(), i => (i as Member)?.MgNr);
             if (DeliveryList.SelectedItem is not Delivery d) {
                 // switch away from creating mode
                 IsCreating = false;
@@ -785,8 +800,11 @@ namespace Elwig.Windows {
             }
         }
 
-        private void NewDeliveryButton_Click(object? sender, RoutedEventArgs? evt) {
-            ControlUtils.RenewItemsSource(AttributesInput, Context.WineAttributes.Where(a => a.IsActive).OrderBy(a => a.Name).ToList(), i => (i as WineAttr)?.AttrId);
+        private async void NewDeliveryButton_Click(object? sender, RoutedEventArgs? evt) {
+            TodayOnlyInput.IsChecked = true;
+            SearchInput.Text = "";
+            ControlUtils.RenewItemsSource(AttributesInput, await Context.WineAttributes.Where(a => a.IsActive).OrderBy(a => a.Name).ToListAsync(), i => (i as WineAttr)?.AttrId);
+            ControlUtils.RenewItemsSource(MemberInput, await Context.Members.Where(m => m.IsActive || !IsReceipt).OrderBy(m => m.FamilyName).ThenBy(m => m.GivenName).ToListAsync(), i => (i as Member)?.MgNr);
             IsCreating = true;
             DeliveryList.IsEnabled = false;
             DeliveryPartList.IsEnabled = false;
@@ -1131,10 +1149,11 @@ namespace Elwig.Windows {
 
         private void EnableWeighingButtons() {
             WeighingManualButton.IsEnabled = true;
-            WeighingAButton.IsEnabled = true;
-            WeighingBButton.IsEnabled = true;
-            WeighingCButton.IsEnabled = true;
-            WeighingDButton.IsEnabled = true;
+            var n = App.Scales.Count;
+            WeighingAButton.IsEnabled = n > 0 && App.Scales[0].IsReady;
+            WeighingBButton.IsEnabled = n > 1 && App.Scales[1].IsReady;
+            WeighingCButton.IsEnabled = n > 2 && App.Scales[2].IsReady;
+            WeighingDButton.IsEnabled = n > 3 && App.Scales[3].IsReady;
         }
 
         private async Task UpdateLsNr() {
@@ -1245,8 +1264,10 @@ namespace Elwig.Windows {
         }
 
         private void ModifiersInput_SelectionChanged(object sender, ItemSelectionChangedEventArgs evt) {
-            if ((IsEditing || IsCreating) && App.Client.IsMatzen) {
-                var mod = ModifiersInput.SelectedItems.Cast<Modifier>();
+            if (!IsEditing && !IsCreating) return;
+            var mod = ModifiersInput.SelectedItems.Cast<Modifier>();
+            var source = ModifiersInput.ItemsSource.Cast<Modifier>();
+            if (App.Client.IsMatzen) {
                 var kl = mod.Where(m => m.Name.StartsWith("Klasse "));
                 if (kl.Count() > 1) {
                     foreach (var r in kl.Take(kl.Count() - 1)) ModifiersInput.SelectedItems.Remove(r);
@@ -1255,11 +1276,14 @@ namespace Elwig.Windows {
         }
 
         private void LesewagenInput_Changed(object sender, RoutedEventArgs evt) {
-            if ((IsEditing || IsCreating) && App.Client.IsMatzen) {
-                var mod = ModifiersInput.SelectedItems.Cast<Modifier>();
+            if (!IsEditing && !IsCreating) return;
+            var mod = ModifiersInput.SelectedItems.Cast<Modifier>();
+            var source = ModifiersInput.ItemsSource.Cast<Modifier>();
+            var lw = LesewagenInput.IsChecked == true;
+            if (App.Client.IsMatzen) {
                 var kl = mod.Where(m => m.Name.StartsWith("Klasse ")).Select(m => m.ModId).LastOrDefault("A")[0];
-                if (LesewagenInput.IsChecked == true) kl++; else kl--;
-                var newKl = ModifiersInput.ItemsSource.Cast<Modifier>().Where(m => m.ModId == kl.ToString()).FirstOrDefault();
+                if (lw) kl++; else kl--;
+                var newKl = source.Where(m => m.ModId == kl.ToString()).FirstOrDefault();
                 if (newKl != null) ModifiersInput.SelectedItems.Add(newKl);
             }
             CheckBox_Changed(sender, evt);