Bug 283178 [Compatibility] Make actionSets visible/invisible
Model elements generated from actionSets should be grouped so they can be made visible/invisible. PW
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ApplicationPackage.java
* <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MSTACK__CHILDREN = MPART__CHILDREN;
	/**
	 * The feature id for the '<em><b>Active Child</b></em>' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MSTACK__ACTIVE_CHILD = MPART__ACTIVE_CHILD;
	/**
	 * The feature id for the '<em><b>Handlers</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MSTACK__HANDLERS = MPART__HANDLERS;
	/**
	 * The feature id for the '<em><b>Widget</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MSTACK__WIDGET = MPART__WIDGET;
	/**