diff --git a/plugins/org.eclipse.sirius.ui.debug/src/org/eclipse/sirius/ui/debug/SiriusDebugView.java b/plugins/org.eclipse.sirius.ui.debug/src/org/eclipse/sirius/ui/debug/SiriusDebugView.java
index d5f1801d5..bf877ce2f 100644
--- a/plugins/org.eclipse.sirius.ui.debug/src/org/eclipse/sirius/ui/debug/SiriusDebugView.java
+++ b/plugins/org.eclipse.sirius.ui.debug/src/org/eclipse/sirius/ui/debug/SiriusDebugView.java
@@ -41,6 +41,7 @@ import org.eclipse.emf.common.util.EList;
 import org.eclipse.emf.common.util.URI;
 import org.eclipse.emf.ecore.EAttribute;
 import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.ENamedElement;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecore.InternalEObject;
@@ -84,6 +85,7 @@ import org.eclipse.sirius.diagram.AbsoluteBoundsFilter;
 import org.eclipse.sirius.diagram.DDiagramElement;
 import org.eclipse.sirius.diagram.DEdge;
 import org.eclipse.sirius.diagram.EdgeTarget;
+import org.eclipse.sirius.diagram.business.api.query.EObjectQuery;
 import org.eclipse.sirius.diagram.sequence.SequenceDDiagram;
 import org.eclipse.sirius.diagram.sequence.business.internal.VerticalPositionFunction;
 import org.eclipse.sirius.diagram.sequence.business.internal.elements.ISequenceElement;
@@ -447,12 +465,79 @@ public class SiriusDebugView extends AbstractDebugView {
 		// addSiriusSelectionAction();
 		// addExtractExpressionsAction();
 		// addLoadResourceWithProgressAction();
-        addShowPayloadAccessLogAction();
-        addClearPayloadAccessLogAction();
-        addShowResourceSetTopologyAction();
-        addShowAdaptersAction();
-        addShowSessionStructureAction();
+//		addShowPayloadAccessLogAction();
+//		addClearPayloadAccessLogAction();
+//		addShowResourceSetTopologyAction();
+//		addShowAdaptersAction();
+//		addShowSessionStructureAction();
 		// addShowCrossReferencerMap();
+		addDeferredChangeAction();
+		addDeferredUnrelatedChangeAction();
+	}
+
+	private void addDeferredChangeAction() {
+		addAction("Deffered Change", new Runnable() {
+			@Override
+			public void run() {
+				EObject current = getCurrentEObject();
+				if (current instanceof DSemanticDecorator
+						&& ((DSemanticDecorator) current).getTarget() instanceof ENamedElement) {
+					final EClass target = (EClass) ((DSemanticDecorator) current).getTarget();
+					new Thread(new Runnable() {
+						public void run() {
+							try {
+								Thread.sleep(6000);
+							} catch (InterruptedException e) {
+								e.printStackTrace();
+							}
+							Session s = new EObjectQuery(target).getSession();
+							if (s != null) {
+								TransactionalEditingDomain ted = s.getTransactionalEditingDomain();
+								ted.getCommandStack().execute(new RecordingCommand(ted) {
+									@Override
+									protected void doExecute() {
+										//target.setName(target.getName() + "X");
+										target.setInstanceClassName(target.getInstanceClassName() + "X");
+									}
+								});
+							}
+						}
+					}).start();
+				}
+			}
+		});
+	}
+
+	private void addDeferredUnrelatedChangeAction() {
+		addAction("Deffered Change (Unrelated)", new Runnable() {
+			@Override
+			public void run() {
+				EObject current = getCurrentEObject();
+				if (current instanceof DSemanticDecorator
+						&& ((DSemanticDecorator) current).getTarget() instanceof ENamedElement) {
+					final EClass target = (EClass) ((DSemanticDecorator) current).getTarget();
+					new Thread(new Runnable() {
+						public void run() {
+							try {
+								Thread.sleep(6000);
+							} catch (InterruptedException e) {
+								e.printStackTrace();
+							}
+							Session s = new EObjectQuery(target).getSession();
+							if (s != null) {
+								TransactionalEditingDomain ted = s.getTransactionalEditingDomain();
+								ted.getCommandStack().execute(new RecordingCommand(ted) {
+									@Override
+									protected void doExecute() {
+										target.setAbstract(!target.isAbstract());
+									}
+								});
+							}
+						}
+					}).start();
+				}
+			}
+		});
 	}
 
 	private void addShowSessionStructureAction() {