Fix things after testing with virtual serial port

PamhagenSysCtrl/Windows/MainWindow.xaml

@@ -15,5 +15,8 @@
 
         <Grid x:Name="ButtonPanel" Margin="5,50,5,5">
         </Grid>
+
+        <TextBlock x:Name="Status"
+                   Margin="500,50,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"/>
     </Grid>
 </Window>

PamhagenSysCtrl/Windows/MainWindow.xaml.cs

@@ -24,7 +24,8 @@ namespace PamhagenSysCtrl {
                 borderStyle.Setters.Add(new Setter(Border.CornerRadiusProperty, new CornerRadius(5)));
                 b.Resources.Add(typeof(Border), borderStyle);
                 b.Click += (sender, evt) => {
-                    if (App.Plant == null) return;
+                    if (App.Plant == null || sender is not Button b) return;
+                    var i = int.Parse($"{b.Content}"[1..]);
                     if (App.Plant.WantValveOpen(i)) {
                         App.Plant.CloseV(i);
                     } else {
@@ -62,6 +63,25 @@ namespace PamhagenSysCtrl {
                 b.Foreground = target ? Brushes.DarkRed : Brushes.Black;
                 b.Background = actual ? Brushes.MistyRose : Brushes.WhiteSmoke;
             }
+
+            Status.Text = $"""
+            Gradation °Oe: {plant.GradationOe:N2}
+            Presse Querschnecke: {plant.PresseQuerSchnecke}
+            Füllstände:
+              Wanne A1: {plant.FillLevelA1} (ausgewählt: {plant.WantA1Selected}, Status: {plant.IsA1Selected})
+              Wanne A2: {plant.FillLevelA2} (ausgewählt: {plant.WantA2Selected}, Status: {plant.IsA2Selected})
+              Presse 1: {plant.FillLevelPress1}
+              Presse 2: {plant.FillLevelPress2}
+              Tank 1: {plant.FillLevelT1}
+              Tank 2: {plant.FillLevelT2}
+              Tank 3: {plant.FillLevelT3}
+              Tank 4: {plant.FillLevelT4}
+              Tank 5: {plant.FillLevelT5}
+              Tank 6: {plant.FillLevelT6}
+              Tank 7: {plant.FillLevelT7}
+              Tank 8: {plant.FillLevelT8}
+              Tank 9: {plant.FillLevelT9}
+            """;
         }
     }
 }