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diff --git a/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/eclipse/forms/editor/FormEditor.java b/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/eclipse/forms/editor/FormEditor.java
new file mode 100644
index 0000000..484dae8
--- /dev/null
+++ b/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/eclipse/forms/editor/FormEditor.java
@@ -0,0 +1,85 @@
+package org.argeo.cms.ui.eclipse.forms.editor;
+
+import org.argeo.cms.ui.eclipse.forms.FormToolkit;
+import org.eclipse.jface.dialogs.IPageChangeProvider;
+
+/**
+ * This class forms a base of multi-page form editors that typically use one or
+ * more pages with forms and one page for raw source of the editor input.
+ * <p>
+ * Pages are added 'lazily' i.e. adding a page reserves a tab for it but does
+ * not cause the page control to be created. Page control is created when an
+ * attempt is made to select the page in question. This allows editors with
+ * several tabs and complex pages to open quickly.
+ * <p>
+ * Subclasses should extend this class and implement <code>addPages</code>
+ * method. One of the two <code>addPage</code> methods should be called to
+ * contribute pages to the editor. One adds complete (standalone) editors as
+ * nested tabs. These editors will be created right away and will be hooked so
+ * that key bindings, selection service etc. is compatible with the one for the
+ * standalone case. The other method adds classes that implement
+ * <code>IFormPage</code> interface. These pages will be created lazily and
+ * they will share the common key binding and selection service. Since 3.1,
+ * FormEditor is a page change provider. It allows listeners to attach to it and
+ * get notified when pages are changed. This new API in JFace allows dynamic
+ * help to update on page changes.
+ * 
+ * @since 1.0
+ */
+// RAP [if] As RAP is still using workbench 3.4, the implementation of
+// IPageChangeProvider is missing from MultiPageEditorPart. Remove this code
+// with the adoption of workbench > 3.5
+//public abstract class FormEditor extends MultiPageEditorPart  {
+public abstract class FormEditor  implements
+        IPageChangeProvider {
+	private FormToolkit formToolkit;
+	
+	
+public FormToolkit getToolkit() {
+		return formToolkit;
+	}
+
+public void editorDirtyStateChanged() {
+	
+}
+
+public FormPage getActivePageInstance() {
+	return null;
+}
+
+	// RAP [if] As RAP is still using workbench 3.4, the implementation of
+// IPageChangeProvider is missing from MultiPageEditorPart. Remove this code
+// with the adoption of workbench > 3.5
+//	private ListenerList pageListeners = new ListenerList();
+//	
+//    /*
+//     * (non-Javadoc)
+//     * 
+//     * @see org.eclipse.jface.dialogs.IPageChangeProvider#addPageChangedListener(org.eclipse.jface.dialogs.IPageChangedListener)
+//     */
+//    public void addPageChangedListener(IPageChangedListener listener) {
+//        pageListeners.add(listener);
+//    }
+//
+//    /*
+//     * (non-Javadoc)
+//     * 
+//     * @see org.eclipse.jface.dialogs.IPageChangeProvider#removePageChangedListener(org.eclipse.jface.dialogs.IPageChangedListener)
+//     */
+//    public void removePageChangedListener(IPageChangedListener listener) {
+//        pageListeners.remove(listener);
+//    }
+//    
+//	private void firePageChanged(final PageChangedEvent event) {
+//        Object[] listeners = pageListeners.getListeners();
+//        for (int i = 0; i < listeners.length; ++i) {
+//            final IPageChangedListener l = (IPageChangedListener) listeners[i];
+//            SafeRunnable.run(new SafeRunnable() {
+//                public void run() {
+//                    l.pageChanged(event);
+//                }
+//            });
+//        }
+//    }
+// RAPEND [if]
+}