diff --git a/Elwig/Windows/ChartWindow.xaml b/Elwig/Windows/ChartWindow.xaml
index 163373e..5e1332f 100644
--- a/Elwig/Windows/ChartWindow.xaml
+++ b/Elwig/Windows/ChartWindow.xaml
@@ -132,17 +132,20 @@
             <GroupBox Header="Datenpunkt" Grid.Row="0" Margin="0,5,5,5">
                 <Grid>
                     <Grid.ColumnDefinitions>
-                        <ColumnDefinition Width="85"/>
+                        <ColumnDefinition Width="65"/>
                         <ColumnDefinition Width="*"/>
                     </Grid.ColumnDefinitions>
 
                     <Label Content="Oechsle:" Margin="10,10,0,0" Grid.Column="0"/>
                     <ctrl:UnitTextBox x:Name="OechsleInput" Unit="°Oe" TextChanged="OechsleInput_TextChanged" IsEnabled="False"
-                                      Grid.Column="1" Width="90" Margin="0,10,0,0" HorizontalAlignment="Left" VerticalAlignment="Top"/>
+                                      Grid.Column="1" Width="52" Margin="0,10,0,0" HorizontalAlignment="Left" VerticalAlignment="Top"/>
+                    <CheckBox x:Name="GebInput" Content="Geb." IsEnabled="False"
+                              Grid.Column="1" Margin="0,15,10,0" HorizontalAlignment="Right" VerticalAlignment="Top"
+                              Checked="GebInput_Changed" Unchecked="GebInput_Changed"/>
 
                     <Label Content="Preis:" Margin="10,40,0,0" Grid.Column="0"/>
                     <ctrl:UnitTextBox x:Name="PriceInput" Unit="€/kg" TextChanged="PriceInput_TextChanged" IsEnabled="False"
-                                      Grid.Column="1" Width="90" Margin="0,40,0,0" HorizontalAlignment="Left" VerticalAlignment="Top"/>
+                                      Grid.Column="1" Margin="0,40,10,0" HorizontalAlignment="Stretch" VerticalAlignment="Top"/>
                 </Grid>
             </GroupBox>
 
diff --git a/Elwig/Windows/ChartWindow.xaml.cs b/Elwig/Windows/ChartWindow.xaml.cs
index 30f1f60..2f96b8f 100644
--- a/Elwig/Windows/ChartWindow.xaml.cs
+++ b/Elwig/Windows/ChartWindow.xaml.cs
@@ -11,7 +11,6 @@ using Elwig.Models.Entities;
 using ScottPlot.Plottables;
 using ScottPlot;
 using ScottPlot.Control;
-using Microsoft.EntityFrameworkCore;
 
 namespace Elwig.Windows {
     public partial class ChartWindow : ContextWindow {
@@ -25,6 +24,7 @@ namespace Elwig.Windows {
         public string CurrencySymbol;
         private PaymentVar PaymentVar;
         private bool HasChanged = false;
+        private bool Updating = false;
 
         private Scatter DataPlot;
         private Scatter? GebundenPlot;
@@ -153,6 +153,8 @@ namespace Elwig.Windows {
             if (SelectedGraphEntry != null) {
                 CopyButton.IsEnabled = true;
                 DeleteButton.IsEnabled = true;
+                EnableTextBox(OechsleInput);
+                GebInput.IsEnabled = SelectedGraphEntry?.GebundenGraph != null;
                 GebundenTypeFixed.IsEnabled = true;
                 GebundenTypeGraph.IsEnabled = true;
                 GebundenTypeNone.IsEnabled = true;
@@ -164,13 +166,13 @@ namespace Elwig.Windows {
                 CopyButton.IsEnabled = false;
                 DeleteButton.IsEnabled = false;
                 DisableTextBox(OechsleInput);
+                GebInput.IsEnabled = false;
                 DisableOptionButtons();
             }
             if (!PaymentVar.TestVariant) {
                 AddButton.IsEnabled = false;
                 CopyButton.IsEnabled = false;
                 DeleteButton.IsEnabled = false;
-                DisableTextBox(OechsleInput);
                 DisableTextBox(PriceInput);
                 GebundenTypeFixed.IsEnabled = false;
                 GebundenTypeGraph.IsEnabled = false;
@@ -395,19 +397,16 @@ namespace Elwig.Windows {
             OechslePricePlot.Plot.Legend.ManualItems.Clear();
         }
 
-        private void OechsleInput_TextChanged(object sender, TextChangedEventArgs evt) {
-            if (ActiveGraph == null || SelectedGraphEntry == null) {
+        private void UpdateSelectedPoint() {
+            if (ActiveGraph == null || SelectedGraphEntry == null)
                 return;
-            }
-
-            bool success = int.TryParse(OechsleInput.Text, out int oechsle);
 
             SecondaryMarkedPoint = -1;
             ChangeMarker(SecondaryMarkedPointPlot, false);
 
-            if (success) { 
-                if (oechsle >= ActiveGraph.MinX && oechsle <= ActiveGraph.MaxX) {
-                    PrimaryMarkedPoint = oechsle - ActiveGraph.MinX;
+            if (int.TryParse(OechsleInput.Text, out int oe)) {
+                if (oe >= ActiveGraph.MinX && oe <= ActiveGraph.MaxX) {
+                    PrimaryMarkedPoint = oe - ActiveGraph.MinX;
                     ChangeMarker(PrimaryMarkedPointPlot, true, ActiveGraph.GetOechsleAt(PrimaryMarkedPoint), ActiveGraph.GetPriceAt(PrimaryMarkedPoint));
 
                     PriceInput.Text = Math.Round(ActiveGraph.GetPriceAt(PrimaryMarkedPoint), Season.Precision).ToString();
@@ -428,6 +427,18 @@ namespace Elwig.Windows {
             DisableTextBox(PriceInput);
         }
 
+        private void OechsleInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            UpdateSelectedPoint();
+        }
+
+        private void GebInput_Changed(object sender, RoutedEventArgs evt) {
+            if (Updating)
+                return;
+            var sel = GebInput.IsChecked == true ? SelectedGraphEntry?.GebundenGraph : SelectedGraphEntry?.DataGraph;
+            if (sel != ActiveGraph) ChangeActiveGraph(sel);
+            UpdateSelectedPoint();
+        }
+
         private void PriceInput_TextChanged(object sender, TextChangedEventArgs evt) {
             if (PrimaryMarkedPoint != -1 && ActiveGraph != null && PriceInput.IsKeyboardFocusWithin == true) {
                 var res = Validator.CheckDecimal(PriceInput, true, 2, Season.Precision);
@@ -486,31 +497,34 @@ namespace Elwig.Windows {
         }
 
         private void OechslePricePlot_MouseDown(object sender, MouseEventArgs e) {
-            if (GraphList.SelectedItem == null) {
+            if (GraphList.SelectedItem == null)
                 return;
-            }
 
             if (HoverActive) {
                 if (PaymentVar.TestVariant && Keyboard.IsKeyDown(System.Windows.Input.Key.LeftCtrl)) {
-                    if (PrimaryMarkedPoint == -1 || ActiveGraph == null || ActiveGraph != Highlighted.Graph) {
+                    if (SecondaryMarkedPoint == -1 || ActiveGraph == null || ActiveGraph != Highlighted.Graph)
                         return;
-                    }
                     SecondaryMarkedPoint = Highlighted.Index;
-
                     ChangeMarker(SecondaryMarkedPointPlot, true, ActiveGraph.GetOechsleAt(SecondaryMarkedPoint), ActiveGraph.GetPriceAt(SecondaryMarkedPoint));
-
                     InterpolateButton.IsEnabled = true;
-
                     return;
                 }
 
+                Updating = true;
                 PrimaryMarkedPoint = Highlighted.Index;
-                if (ActiveGraph != Highlighted.Graph) ChangeActiveGraph(Highlighted.Graph);
+                if (ActiveGraph != Highlighted.Graph)
+                    ChangeActiveGraph(Highlighted.Graph);
+                Updating = false;
+                if (PrimaryMarkedPoint == -1 || ActiveGraph == null)
+                    return;
 
-                ChangeMarker(PrimaryMarkedPointPlot, true, ActiveGraph!.GetOechsleAt(PrimaryMarkedPoint), ActiveGraph.GetPriceAt(PrimaryMarkedPoint));
+                ChangeMarker(PrimaryMarkedPointPlot, true, ActiveGraph.GetOechsleAt(PrimaryMarkedPoint), ActiveGraph.GetPriceAt(PrimaryMarkedPoint));
 
+                Updating = true;
                 OechsleInput.Text = Highlighted.Graph!.GetOechsleAt(Highlighted.Index).ToString();
+                GebInput.IsChecked = Highlighted.Graph == SelectedGraphEntry?.GebundenGraph;
                 PriceInput.Text = Math.Round(Highlighted.Graph.GetPriceAt(Highlighted.Index), Season.Precision).ToString();
+                Updating = false;
 
                 EnableActionButtons();
             } else {
@@ -523,6 +537,7 @@ namespace Elwig.Windows {
                 ChangeMarker(SecondaryMarkedPointPlot, false);
 
                 OechsleInput.Text = "";
+                GebInput.IsChecked = false;
                 PriceInput.Text = "";
                 DisableTextBox(PriceInput);
 
@@ -667,7 +682,7 @@ namespace Elwig.Windows {
         }
 
         private void EnableTextBox(TextBox u) {
-            if (PaymentVar.TestVariant) {
+            if (PaymentVar.TestVariant || u == OechsleInput) {
                 u.IsEnabled = true;
                 u.IsReadOnly = false;
             }
@@ -683,14 +698,20 @@ namespace Elwig.Windows {
                 EnableTextBox(OechsleInput);
                 if (SelectedGraphEntry?.GebundenGraph != null) ChangeLineWidth(DataPlot, 4);
                 ChangeLineWidth(GebundenPlot, 1);
+                GebInput.IsEnabled = SelectedGraphEntry?.GebundenGraph != null;
+                GebInput.IsChecked = false;
             } else if (g != null && g == SelectedGraphEntry?.GebundenGraph) {
                 EnableTextBox(OechsleInput);
                 ChangeLineWidth(GebundenPlot, 4);
                 ChangeLineWidth(DataPlot, 1);
+                GebInput.IsEnabled = SelectedGraphEntry?.GebundenGraph != null;
+                GebInput.IsChecked = true;
             } else {
                 DisableTextBox(OechsleInput);
                 DisableTextBox(PriceInput);
                 OechsleInput.Text = "";
+                GebInput.IsEnabled = false;
+                GebInput.IsChecked = false;
                 PriceInput.Text = "";
                 ChangeLineWidth(DataPlot, 1);
                 ChangeLineWidth(GebundenPlot, 1);