diff --git a/src/main/java/de/neemann/digital/data/DataPlotter.java b/src/main/java/de/neemann/digital/data/DataPlotter.java
index e77357e09..a4504f06f 100644
--- a/src/main/java/de/neemann/digital/data/DataPlotter.java
+++ b/src/main/java/de/neemann/digital/data/DataPlotter.java
@@ -5,6 +5,8 @@ import de.neemann.digital.draw.graphics.Orientation;
 import de.neemann.digital.draw.graphics.Style;
 import de.neemann.digital.draw.graphics.Vector;
 import de.neemann.digital.draw.shapes.Drawable;
+import de.neemann.digital.gui.sync.NoSync;
+import de.neemann.digital.gui.sync.Sync;
 
 /**
  * The dataSet stores the collected DataSamples.
@@ -16,6 +18,7 @@ public class DataPlotter implements Drawable {
     private final ValueTable data;
     private final int maxTextLength;
     private double size = SIZE;
+    private Sync modelSync = NoSync.INST;
 
     /**
      * Creates a new instance
@@ -44,7 +47,7 @@ public class DataPlotter implements Drawable {
      * @param width width of the frame
      */
     public void fitInside(int width) {
-        size = ((double) (width - getTextBorder())) / data.getRows();
+        modelSync.access(() -> size = ((double) (width - getTextBorder())) / data.getRows());
     }
 
     /**
@@ -63,43 +66,45 @@ public class DataPlotter implements Drawable {
 
     @Override
     public void drawTo(Graphic g, Style highLight) {
-        int x = getTextBorder();
+        modelSync.access(() -> {
+            int x = getTextBorder();
 
-        int yOffs = SIZE / 2;
-        int y = BORDER;
-        int signals = data.getColumns();
-        for (int i = 0; i < signals; i++) {
-            String text = data.getColumnName(i);
-            g.drawText(new Vector(x - 2, y + yOffs), new Vector(x + 1, y + yOffs), text, Orientation.RIGHTCENTER, Style.NORMAL);
-            g.drawLine(new Vector(x, y - SEP2), new Vector(x + (int) (size * data.getRows()), y - SEP2), Style.DASH);
-            y += SIZE + SEP;
-        }
-        g.drawLine(new Vector(x, y - SEP2), new Vector(x + (int) (size * data.getRows()), y - SEP2), Style.DASH);
-
-
-        int[] lastRy = new int[signals];
-        boolean first = true;
-        double pos = 0;
-        for (Value[] s : data) {
-            int xx = (int) (pos + x);
-            g.drawLine(new Vector(xx, BORDER - SEP2), new Vector(xx, (SIZE + SEP) * signals + BORDER - SEP2), Style.DASH);
-            y = BORDER;
+            int yOffs = SIZE / 2;
+            int y = BORDER;
+            int signals = data.getColumns();
             for (int i = 0; i < signals; i++) {
-
-                long width = data.getMax(i);
-                if (width == 0) width = 1;
-                int ry = (int) (SIZE - (SIZE * s[i].getValue()) / width);
-                g.drawLine(new Vector(xx, y + ry), new Vector((int) (xx + size), y + ry), Style.NORMAL);
-                if (!first && ry != lastRy[i])
-                    g.drawLine(new Vector(xx, y + lastRy[i]), new Vector(xx, y + ry), Style.NORMAL);
-
-                lastRy[i] = ry;
+                String text = data.getColumnName(i);
+                g.drawText(new Vector(x - 2, y + yOffs), new Vector(x + 1, y + yOffs), text, Orientation.RIGHTCENTER, Style.NORMAL);
+                g.drawLine(new Vector(x, y - SEP2), new Vector(x + (int) (size * data.getRows()), y - SEP2), Style.DASH);
                 y += SIZE + SEP;
             }
-            first = false;
-            pos += size;
-        }
-        g.drawLine(new Vector(x, BORDER - SEP2), new Vector(x, (SIZE + SEP) * signals + BORDER - SEP2), Style.DASH);
+            g.drawLine(new Vector(x, y - SEP2), new Vector(x + (int) (size * data.getRows()), y - SEP2), Style.DASH);
+
+
+            int[] lastRy = new int[signals];
+            boolean first = true;
+            double pos = 0;
+            for (Value[] s : data) {
+                int xx = (int) (pos + x);
+                g.drawLine(new Vector(xx, BORDER - SEP2), new Vector(xx, (SIZE + SEP) * signals + BORDER - SEP2), Style.DASH);
+                y = BORDER;
+                for (int i = 0; i < signals; i++) {
+
+                    long width = data.getMax(i);
+                    if (width == 0) width = 1;
+                    int ry = (int) (SIZE - (SIZE * s[i].getValue()) / width);
+                    g.drawLine(new Vector(xx, y + ry), new Vector((int) (xx + size), y + ry), Style.NORMAL);
+                    if (!first && ry != lastRy[i])
+                        g.drawLine(new Vector(xx, y + lastRy[i]), new Vector(xx, y + ry), Style.NORMAL);
+
+                    lastRy[i] = ry;
+                    y += SIZE + SEP;
+                }
+                first = false;
+                pos += size;
+            }
+            g.drawLine(new Vector(x, BORDER - SEP2), new Vector(x, (SIZE + SEP) * signals + BORDER - SEP2), Style.DASH);
+        });
     }
 
     private int getTextBorder() {
@@ -117,7 +122,24 @@ public class DataPlotter implements Drawable {
      * @return the current width of the graphical representation
      */
     public int getCurrentGraphicWidth() {
-        return getTextBorder() + (int) (data.getRows() * size);
+        return modelSync.access(new Runnable() {
+            private int r;
+
+            @Override
+            public void run() {
+                r = DataPlotter.this.getTextBorder() + (int) (data.getRows() * size);
+            }
+        }).r;
     }
 
+    /**
+     * Sets lock to access the data
+     *
+     * @param modelSync the lock
+     * @return this for chained calls
+     */
+    public DataPlotter setModelSync(Sync modelSync) {
+        this.modelSync = modelSync;
+        return this;
+    }
 }
diff --git a/src/main/java/de/neemann/digital/gui/Main.java b/src/main/java/de/neemann/digital/gui/Main.java
index cfe7422f8..47171f9ee 100644
--- a/src/main/java/de/neemann/digital/gui/Main.java
+++ b/src/main/java/de/neemann/digital/gui/Main.java
@@ -1003,9 +1003,9 @@ public final class Main extends JFrame implements ClosingWindowListener.ConfirmS
                 windowPosManager.register("probe", new ProbeDialog(this, model, updateEvent, ordering, modelSync)).setVisible(true);
 
             if (settings.get(Keys.SHOW_DATA_GRAPH))
-                windowPosManager.register("dataSet", new DataSetDialog(this, model, updateEvent == ModelEvent.MICROSTEP, ordering, modelSync)).setVisible(true);
+                windowPosManager.register("dataSet", DataSetDialog.createLiveDialog(this, model, updateEvent == ModelEvent.MICROSTEP, ordering, modelSync)).setVisible(true);
             if (settings.get(Keys.SHOW_DATA_GRAPH_MICRO))
-                windowPosManager.register("dataSetMicro", new DataSetDialog(this, model, true, ordering, modelSync)).setVisible(true);
+                windowPosManager.register("dataSetMicro", DataSetDialog.createLiveDialog(this, model, true, ordering, modelSync)).setVisible(true);
 
             if (modelModifier != null)
                 modelModifier.preInit(model);
diff --git a/src/main/java/de/neemann/digital/gui/components/data/DataSetComponent.java b/src/main/java/de/neemann/digital/gui/components/data/DataSetComponent.java
index 62e019950..d17724eb2 100644
--- a/src/main/java/de/neemann/digital/gui/components/data/DataSetComponent.java
+++ b/src/main/java/de/neemann/digital/gui/components/data/DataSetComponent.java
@@ -3,6 +3,7 @@ package de.neemann.digital.gui.components.data;
 import de.neemann.digital.data.DataPlotter;
 import de.neemann.digital.data.ValueTable;
 import de.neemann.digital.draw.graphics.GraphicSwing;
+import de.neemann.digital.gui.sync.Sync;
 
 import javax.swing.*;
 import java.awt.*;
@@ -15,15 +16,20 @@ import java.awt.*;
  */
 public class DataSetComponent extends JComponent {
     private final DataPlotter plotter;
+    /**
+     * The data stored in the plotter needs to be seen as part of the model.
+     * So a lock is necessary to access the data.
+     */
     private JScrollPane scrollPane;
 
     /**
      * Creates a new dataSet
      *
-     * @param dataSet the dataSet to paint
+     * @param dataSet   the dataSet to paint
+     * @param modelSync lock to access the model
      */
-    public DataSetComponent(ValueTable dataSet) {
-        plotter = new DataPlotter(dataSet);
+    public DataSetComponent(ValueTable dataSet, Sync modelSync) {
+        plotter = new DataPlotter(dataSet).setModelSync(modelSync);
         addMouseWheelListener(e -> {
             double f = Math.pow(0.9, e.getWheelRotation());
             scale(f, e.getX());
@@ -55,8 +61,8 @@ public class DataSetComponent extends JComponent {
     public void scale(double f, int xPos) {
         revalidate();
         repaint();
-        f=plotter.scale(f);
-
+        f = plotter.scale(f);
+        // keep relative mouse position
         int x = (int) (xPos * f) - (xPos - (int) scrollPane.getViewport().getViewRect().getX());
         if (x < 0) x = 0;
         scrollPane.getViewport().setViewPosition(new Point(x, 0));
diff --git a/src/main/java/de/neemann/digital/gui/components/data/DataSetDialog.java b/src/main/java/de/neemann/digital/gui/components/data/DataSetDialog.java
index 682c01634..74ede1456 100644
--- a/src/main/java/de/neemann/digital/gui/components/data/DataSetDialog.java
+++ b/src/main/java/de/neemann/digital/gui/components/data/DataSetDialog.java
@@ -7,6 +7,7 @@ import de.neemann.digital.core.Signal;
 import de.neemann.digital.data.ValueTable;
 import de.neemann.digital.gui.SaveAsHelper;
 import de.neemann.digital.gui.components.OrderMerger;
+import de.neemann.digital.gui.sync.NoSync;
 import de.neemann.digital.gui.sync.Sync;
 import de.neemann.digital.lang.Lang;
 import de.neemann.gui.IconCreator;
@@ -32,27 +33,29 @@ public class DataSetDialog extends JDialog implements ModelStateObserver {
     private final DataSetComponent dsc;
     private final JScrollPane scrollPane;
     private final Sync modelSync;
-    private ValueTable logData;
     private DataSetObserver dataSetObserver;
 
     private static final Icon ICON_EXPAND = IconCreator.create("View-zoom-fit.png");
     private static final Icon ICON_ZOOM_IN = IconCreator.create("View-zoom-in.png");
     private static final Icon ICON_ZOOM_OUT = IconCreator.create("View-zoom-out.png");
 
+
     /**
-     * Creates a new instance
+     * Creates a instance prepared for "live logging"
      *
      * @param owner     the parent frame
-     * @param model     the model used to collect the data
-     * @param microStep true     the event type which triggers a new DataSample
-     * @param ordering  the ordering of the measurement values
-     * @param modelSync used to access the running model
+     * @param model     the model
+     * @param microStep stepping mode
+     * @param ordering  the ordering to use
+     * @param modelSync the lock to access the model
+     * @return the created instance
      */
-    public DataSetDialog(Frame owner, Model model, boolean microStep, List<String> ordering, Sync modelSync) {
-        super(owner, createTitle(microStep), false);
-        this.modelSync = modelSync;
-        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
-        setAlwaysOnTop(true);
+    public static DataSetDialog createLiveDialog(Frame owner, Model model, boolean microStep, List<String> ordering, Sync modelSync) {
+        String title;
+        if (microStep)
+            title = Lang.get("win_measures_microstep");
+        else
+            title = Lang.get("win_measures_fullstep");
 
         ArrayList<Signal> signals = model.getSignalsCopy();
         new OrderMerger<String, Signal>(ordering) {
@@ -62,11 +65,40 @@ public class DataSetDialog extends JDialog implements ModelStateObserver {
             }
         }.order(signals);
 
+        DataSetObserver dataSetObserver = new DataSetObserver(microStep, signals, MAX_SAMPLE_SIZE);
+        ValueTable logData = dataSetObserver.getLogData();
 
-        dataSetObserver = new DataSetObserver(microStep, signals, MAX_SAMPLE_SIZE);
-        logData = dataSetObserver.getLogData();
+        return new DataSetDialog(owner, title, model, logData, dataSetObserver, modelSync);
+    }
 
-        dsc = new DataSetComponent(logData);
+    /**
+     * Creates a new instance
+     *
+     * @param owner   the parent frame
+     * @param title   the frame title
+     * @param logData the data to visualize
+     */
+    public DataSetDialog(Frame owner, String title, ValueTable logData) {
+        this(owner, title, null, logData, null, NoSync.INST);
+    }
+
+    /**
+     * Creates a new instance
+     *
+     * @param owner     the parent frame
+     * @param title     the frame title
+     * @param model     the model used to collect the data
+     * @param logData   the data to visualize
+     * @param modelSync used to access the running model
+     */
+    private DataSetDialog(Frame owner, String title, Model model, ValueTable logData, DataSetObserver dataSetObserver, Sync modelSync) {
+        super(owner, title, false);
+        this.dataSetObserver = dataSetObserver;
+        this.modelSync = modelSync;
+        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
+        setAlwaysOnTop(true);
+
+        dsc = new DataSetComponent(logData, modelSync);
         scrollPane = new JScrollPane(dsc);
         getContentPane().add(scrollPane);
         dsc.setScrollPane(scrollPane);
@@ -100,17 +132,18 @@ public class DataSetDialog extends JDialog implements ModelStateObserver {
         getContentPane().add(toolBar, BorderLayout.NORTH);
         pack();
 
-        addWindowListener(new WindowAdapter() {
-            @Override
-            public void windowOpened(WindowEvent e) {
-                modelSync.access(() -> model.addObserver(DataSetDialog.this));
-            }
+        if (model != null)
+            addWindowListener(new WindowAdapter() {
+                @Override
+                public void windowOpened(WindowEvent e) {
+                    modelSync.access(() -> model.addObserver(DataSetDialog.this));
+                }
 
-            @Override
-            public void windowClosed(WindowEvent e) {
-                modelSync.access(() -> model.removeObserver(DataSetDialog.this));
-            }
-        });
+                @Override
+                public void windowClosed(WindowEvent e) {
+                    modelSync.access(() -> model.removeObserver(DataSetDialog.this));
+                }
+            });
 
         scrollPane.getViewport().setPreferredSize(dsc.getPreferredSize());
 
@@ -123,7 +156,7 @@ public class DataSetDialog extends JDialog implements ModelStateObserver {
                 JFileChooser fileChooser = new MyFileChooser();
                 fileChooser.setFileFilter(new FileNameExtensionFilter("Comma Separated Values", "csv"));
                 new SaveAsHelper(DataSetDialog.this, fileChooser, "csv")
-                        .checkOverwrite(file -> logData.saveCSV(file));
+                        .checkOverwrite(logData::saveCSV);
             }
         }.setToolTip(Lang.get("menu_saveData_tt")).createJMenuItem());
 
@@ -138,14 +171,6 @@ public class DataSetDialog extends JDialog implements ModelStateObserver {
         setLocationRelativeTo(owner);
     }
 
-    private static String createTitle(boolean microStep) {
-        if (microStep)
-            return Lang.get("win_measures_microstep");
-        else
-            return Lang.get("win_measures_fullstep");
-    }
-
-
     @Override
     public void handleEvent(ModelEvent event) {
         modelSync.access(() -> {
diff --git a/src/main/java/de/neemann/digital/gui/components/testing/TestResultDialog.java b/src/main/java/de/neemann/digital/gui/components/testing/TestResultDialog.java
index 3bdf23f37..a6852e7f0 100644
--- a/src/main/java/de/neemann/digital/gui/components/testing/TestResultDialog.java
+++ b/src/main/java/de/neemann/digital/gui/components/testing/TestResultDialog.java
@@ -2,6 +2,7 @@ package de.neemann.digital.gui.components.testing;
 
 import de.neemann.digital.core.Model;
 import de.neemann.digital.core.NodeException;
+import de.neemann.digital.data.ValueTable;
 import de.neemann.digital.data.ValueTableModel;
 import de.neemann.digital.data.Value;
 import de.neemann.digital.draw.elements.Circuit;
@@ -9,15 +10,18 @@ import de.neemann.digital.draw.elements.PinException;
 import de.neemann.digital.draw.library.ElementLibrary;
 import de.neemann.digital.draw.library.ElementNotFoundException;
 import de.neemann.digital.draw.model.ModelCreator;
+import de.neemann.digital.gui.components.data.DataSetDialog;
 import de.neemann.digital.lang.Lang;
 import de.neemann.digital.testing.*;
 import de.neemann.gui.ErrorMessage;
 import de.neemann.gui.IconCreator;
 import de.neemann.gui.LineBreaker;
+import de.neemann.gui.ToolTipAction;
 
 import javax.swing.*;
 import javax.swing.table.DefaultTableCellRenderer;
 import java.awt.*;
+import java.awt.event.ActionEvent;
 import java.util.ArrayList;
 import java.util.Collections;
 
@@ -32,6 +36,8 @@ public class TestResultDialog extends JDialog {
     private static final Icon ICON_FAILED = IconCreator.create("testFailed.png");
     private static final Icon ICON_PASSED = IconCreator.create("testPassed.png");
 
+    private final ArrayList<ValueTable> resultTableData;
+
     /**
      * Creates a new result dialog.
      *
@@ -50,6 +56,8 @@ public class TestResultDialog extends JDialog {
 
         Collections.sort(tsl);
 
+        resultTableData = new ArrayList<>();
+
         JTabbedPane tp = new JTabbedPane();
         int i = 0;
         int errorTabIndex = -1;
@@ -65,8 +73,9 @@ public class TestResultDialog extends JDialog {
             table.setDefaultRenderer(Value.class, new ValueRenderer());
             table.setDefaultRenderer(Integer.class, new NumberRenderer());
             final Font font = table.getFont();
-            table.getColumnModel().getColumn(0).setMaxWidth(font.getSize()*4);
+            table.getColumnModel().getColumn(0).setMaxWidth(font.getSize() * 4);
             table.setRowHeight(font.getSize() * 6 / 5);
+            resultTableData.add(testExecuter.getResult());
 
             String tabName;
             Icon tabIcon;
@@ -89,6 +98,21 @@ public class TestResultDialog extends JDialog {
         if (errorTabIndex >= 0)
             tp.setSelectedIndex(errorTabIndex);
 
+
+        JMenuBar bar = new JMenuBar();
+        JMenu view = new JMenu(Lang.get("menu_view"));
+        ToolTipAction asGraph = new ToolTipAction(Lang.get("menu_showDataAsGraph")) {
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                int tab = tp.getSelectedIndex();
+                if (tab < 0) tab = 0;
+                new DataSetDialog(owner, Lang.get("win_testdata_N", tp.getTitleAt(tab)), resultTableData.get(tab)).setVisible(true);
+            }
+        }.setToolTip(Lang.get("menu_showDataAsGraph_tt"));
+        view.add(asGraph.createJMenuItem());
+        bar.add(view);
+        setJMenuBar(bar);
+
         getContentPane().add(tp);
         pack();
         setLocationRelativeTo(owner);
diff --git a/src/main/java/de/neemann/digital/gui/sync/LockSync.java b/src/main/java/de/neemann/digital/gui/sync/LockSync.java
index b624d6c18..250532977 100644
--- a/src/main/java/de/neemann/digital/gui/sync/LockSync.java
+++ b/src/main/java/de/neemann/digital/gui/sync/LockSync.java
@@ -20,20 +20,22 @@ public class LockSync implements Sync {
     }
 
     @Override
-    public void access(Runnable run) {
+    public <A extends Runnable> A access(A run) {
         lock.lock();
         try {
             run.run();
+            return run;
         } finally {
             lock.unlock();
         }
     }
 
     @Override
-    public void accessNEx(Sync.ModelRun run) throws NodeException {
+    public <A extends Sync.ModelRun> A  accessNEx(A run) throws NodeException {
         lock.lock();
         try {
             run.run();
+            return run;
         } finally {
             lock.unlock();
         }
diff --git a/src/main/java/de/neemann/digital/gui/sync/NoSync.java b/src/main/java/de/neemann/digital/gui/sync/NoSync.java
index 545d17bde..75dc9c88d 100644
--- a/src/main/java/de/neemann/digital/gui/sync/NoSync.java
+++ b/src/main/java/de/neemann/digital/gui/sync/NoSync.java
@@ -18,12 +18,14 @@ public final class NoSync implements Sync {
     }
 
     @Override
-    public void access(Runnable run) {
+    public <A extends Runnable> A access(A run) {
         run.run();
+        return run;
     }
 
     @Override
-    public void accessNEx(Sync.ModelRun run) throws NodeException {
+    public <A extends Sync.ModelRun> A accessNEx(A run) throws NodeException {
         run.run();
+        return run;
     }
 }
diff --git a/src/main/java/de/neemann/digital/gui/sync/Sync.java b/src/main/java/de/neemann/digital/gui/sync/Sync.java
index f87051b8e..a3de3a2ac 100644
--- a/src/main/java/de/neemann/digital/gui/sync/Sync.java
+++ b/src/main/java/de/neemann/digital/gui/sync/Sync.java
@@ -13,16 +13,20 @@ public interface Sync {
      * Calls the given runnable
      *
      * @param run the runnable to execute
+     * @param <A> the type oth the runnable
+     * @return the given runnable. Used for chained calls
      */
-    void access(Runnable run);
+    <A extends Runnable> A access(A run);
 
     /**
      * Same as access, but catches an exception
      *
      * @param run the runnable to execute
+     * @param <A> the type oth the runnable
+     * @return the given runnable. Used for chained calls
      * @throws NodeException NodeException
      */
-    void accessNEx(ModelRun run) throws NodeException;
+    <A extends Sync.ModelRun> A accessNEx(A run) throws NodeException;
 
     /**
      * Like runnable but throws an exception
diff --git a/src/main/resources/lang/lang_de.xml b/src/main/resources/lang/lang_de.xml
index bc20cc3f4..f7cc6c6d1 100644
--- a/src/main/resources/lang/lang_de.xml
+++ b/src/main/resources/lang/lang_de.xml
@@ -863,7 +863,7 @@ Sind evtl. die Namen der Variablen nicht eindeutig?</string>
     <string name="menu_undo_tt">Letzte Aktion rückgängig machen</string>
     <string name="menu_redo">Wiederherstellen</string>
     <string name="menu_redo_tt">Letzte rückgängig gemachte Aktion wieder herstellen.</string>
-    <string name="menu_showDataAsGraph">Als Graph anzeigen.</string>
+    <string name="menu_showDataAsGraph">Zeige Graph</string>
     <string name="menu_showDataAsGraph_tt">Zeigt die Daten als Graph an.</string>
 
     <string name="message">Digital
@@ -947,6 +947,7 @@ Die Icons stammen aus dem Tango Desktop Project.</string>
     <string name="tt_moveItemDown">Eintrag nach unten schieben</string>
     <string name="tt_moveItemUp">Eintrag nach oben schieben</string>
     <string name="win_allSolutions">Alle möglichen Lösungen</string>
+    <string name="win_testdata_N">Testdaten {0}</string>
     <string name="win_confirmExit">Beenden bestätigen!</string>
     <string name="win_measures">Messwerte</string>
     <string name="win_measures_fullstep">Messwerte im Vollschrittmodus</string>
diff --git a/src/main/resources/lang/lang_en.xml b/src/main/resources/lang/lang_en.xml
index cc46607ea..edf409d0e 100644
--- a/src/main/resources/lang/lang_en.xml
+++ b/src/main/resources/lang/lang_en.xml
@@ -851,6 +851,8 @@ The names of the variables may not be unique.</string>
     <string name="menu_undo_tt">Revert last modification</string>
     <string name="menu_redo">Redo</string>
     <string name="menu_redo_tt">Apply last reverted modification again.</string>
+    <string name="menu_showDataAsGraph">Show graph</string>
+    <string name="menu_showDataAsGraph_tt">Show the data as a Graph.</string>
 
 
     <string name="message">Digital
@@ -941,6 +943,7 @@ The icons are taken from the Tango Desktop Project.</string>
     <string name="win_table">Table</string>
     <string name="win_table_exportDialog">Export</string>
     <string name="win_itempicker_title">Select</string>
+    <string name="win_testdata_N">Testdata {0}</string>
 
     <string name="btn_help">Help</string>