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diff --git a/extraplugins/qompass/designer/org.eclipse.papyrus.qompass.designer.core/src/org/eclipse/papyrus/qompass/designer/core/extensions/InstanceConfigurator.java b/extraplugins/qompass/designer/org.eclipse.papyrus.qompass.designer.core/src/org/eclipse/papyrus/qompass/designer/core/extensions/InstanceConfigurator.java
new file mode 100644
index 00000000000..709c8236cd2
--- /dev/null
+++ b/extraplugins/qompass/designer/org.eclipse.papyrus.qompass.designer.core/src/org/eclipse/papyrus/qompass/designer/core/extensions/InstanceConfigurator.java
@@ -0,0 +1,121 @@
+/*******************************************************************************
+ * Copyright (c) 2011 CEA LIST.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     CEA LIST - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.papyrus.qompass.designer.core.extensions;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IExtensionRegistry;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.papyrus.FCM.ContainerRule;
+import org.eclipse.papyrus.FCM.UseInstanceConfigurator;
+import org.eclipse.papyrus.qompass.designer.core.Activator;
+import org.eclipse.papyrus.qompass.designer.core.Messages;
+import org.eclipse.papyrus.qompass.designer.core.deployment.DepUtils;
+import org.eclipse.uml2.uml.Classifier;
+import org.eclipse.uml2.uml.InstanceSpecification;
+import org.eclipse.uml2.uml.Property;
+import org.eclipse.uml2.uml.util.UMLUtil;
+
+
+/**
+ * Support for the configuration of instances via the Eclipse extension mechanism
+ */
+public class InstanceConfigurator {
+
+	public static final String IINSTANCE_CONFIG_ID = Activator.PLUGIN_ID + ".instanceConfig"; //$NON-NLS-1$
+
+	public static boolean onNodeModel = false;
+
+	/**
+	 * Configure an instance. The configurator is selected by means of a stereotype on the classifier of
+	 * the passed instance.
+	 *
+	 * @see org.eclipse.papyrus.qompass.designer.core.extensions.IInstanceConfigurator
+	 * @param instance
+	 *            the specification of instance that should be configured
+	 * @param componentPart
+	 *            the part representing the instance (before container expansion)
+	 * @param port
+	 *            a port within the context of container
+	 */
+	public static void configureInstance(InstanceSpecification instance, Property componentPart, InstanceSpecification parentInstance) {
+		Classifier component = DepUtils.getClassifier(instance);
+		UseInstanceConfigurator useInstanceConfigurator = UMLUtil.getStereotypeApplication(component, UseInstanceConfigurator.class);
+		configureInstance(useInstanceConfigurator, instance, componentPart, parentInstance);
+	}
+
+	/**
+	 * Configure an instance. The configurator is selected by means of a stereotype on the passed container rule.
+	 *
+	 * @see org.eclipse.papyrus.qompass.designer.core.extensions.IInstanceConfigurator
+	 * @param rule
+	 *            the applied container rule
+	 * @param instance
+	 *            the specification of instance that should be configured
+	 * @param componentPart
+	 *            the part representing the instance (before container expansion)
+	 * @param port
+	 *            a port within the context of container
+	 */
+	public static void configureInstance(ContainerRule rule, InstanceSpecification instance, Property componentPart, InstanceSpecification parentInstance) {
+		UseInstanceConfigurator useInstanceConfigurator = UMLUtil.getStereotypeApplication(rule.getBase_Class(), UseInstanceConfigurator.class);
+		configureInstance(useInstanceConfigurator, instance, componentPart, parentInstance);
+	}
+
+	/**
+	 * Configure an instance with a given configurator
+	 *
+	 * @param useInstanceConfigurator
+	 * @param instance
+	 * @param componentPart
+	 * @param containerContext
+	 */
+	public static void configureInstance(UseInstanceConfigurator useInstanceConfigurator, InstanceSpecification instance, Property componentPart, InstanceSpecification parentInstance) {
+		if (useInstanceConfigurator != null) {
+			org.eclipse.papyrus.FCM.InstanceConfigurator instanceConfigurator = useInstanceConfigurator.getConfigurator();
+			if (instanceConfigurator.isOnNodeModel() == onNodeModel) {
+				if (instanceConfigurator != null) {
+					String id = instanceConfigurator.getBase_Class().getName();
+					IInstanceConfigurator iConfigurator = getInstanceConfigurator(id);
+					if (iConfigurator != null) {
+						iConfigurator.configureInstance(instance, componentPart, parentInstance);
+
+					}
+				}
+			}
+		}
+	}
+
+	protected static IInstanceConfigurator getInstanceConfigurator(String iConfiguratorID) {
+		IExtensionRegistry reg = Platform.getExtensionRegistry();
+		IConfigurationElement[] configElements = reg.getConfigurationElementsFor(IINSTANCE_CONFIG_ID);
+		for (IConfigurationElement configElement : configElements) {
+			try {
+				final String iConfiguratorIDext = configElement.getAttribute("configuratorID"); //$NON-NLS-1$
+				if (iConfiguratorIDext == null) {
+					throw new RuntimeException(String.format(
+							Messages.InstanceConfigurator_InvalidPluginExtension, iConfiguratorID));
+				}
+				if (iConfiguratorIDext.equals(iConfiguratorID)) {
+					// TODO: cache returned instance (avoid creating a new instance each time => more efficient, no need for static attributes)
+					final Object obj = configElement.createExecutableExtension("class"); //$NON-NLS-1$
+					if (obj instanceof IInstanceConfigurator) {
+						return (IInstanceConfigurator) obj;
+					}
+				}
+			} catch (CoreException exception) {
+				exception.printStackTrace();
+			}
+		}
+		return null;
+	}
+}