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diff --git a/swt/org.argeo.tool.devops.e4/src/org/argeo/cms/ui/jcr/model/SingleJcrNodeElem.java b/swt/org.argeo.tool.devops.e4/src/org/argeo/cms/ui/jcr/model/SingleJcrNodeElem.java
new file mode 100644
index 0000000..a2584a5
--- /dev/null
+++ b/swt/org.argeo.tool.devops.e4/src/org/argeo/cms/ui/jcr/model/SingleJcrNodeElem.java
@@ -0,0 +1,84 @@
+package org.argeo.cms.ui.jcr.model;
+
+import javax.jcr.Node;
+import javax.jcr.NodeIterator;
+import javax.jcr.RepositoryException;
+import javax.jcr.Workspace;
+
+import org.argeo.cms.ux.widgets.TreeParent;
+import org.argeo.eclipse.ui.EclipseUiException;
+
+/**
+ * UI Tree component. Wraps a node of a JCR {@link Workspace}. It also keeps a
+ * reference to its parent node that can either be a {@link WorkspaceElem}, a
+ * {@link SingleJcrNodeElem} or null if the node is "mounted" as the root of the
+ * UI tree.
+ */
+public class SingleJcrNodeElem extends TreeParent {
+
+	private final Node node;
+	private String alias = null;
+
+	/** Creates a new UiNode in the UI Tree */
+	public SingleJcrNodeElem(TreeParent parent, Node node, String name) {
+		super(name);
+		setParent(parent);
+		this.node = node;
+	}
+
+	/**
+	 * Creates a new UiNode in the UI Tree, keeping a reference to the alias of
+	 * the corresponding repository in the current UI environment. It is useful
+	 * to be able to mount nodes as roots of the UI tree.
+	 */
+	public SingleJcrNodeElem(TreeParent parent, Node node, String name, String alias) {
+		super(name);
+		setParent(parent);
+		this.node = node;
+		this.alias = alias;
+	}
+
+	/** Returns the node wrapped by the current UI object */
+	public Node getNode() {
+		return node;
+	}
+
+	protected String getRepositoryAlias() {
+		return alias;
+	}
+
+	/**
+	 * Overrides normal behaviour to initialise children only when first
+	 * requested
+	 */
+	@Override
+	public synchronized Object[] getChildren() {
+		if (isLoaded()) {
+			return super.getChildren();
+		} else {
+			// initialize current object
+			try {
+				NodeIterator ni = node.getNodes();
+				while (ni.hasNext()) {
+					Node curNode = ni.nextNode();
+					addChild(new SingleJcrNodeElem(this, curNode, curNode.getName()));
+				}
+				return super.getChildren();
+			} catch (RepositoryException re) {
+				throw new EclipseUiException("Cannot initialize SingleJcrNode children", re);
+			}
+		}
+	}
+
+	@Override
+	public boolean hasChildren() {
+		try {
+			if (node.getSession().isLive())
+				return node.hasNodes();
+			else
+				return false;
+		} catch (RepositoryException re) {
+			throw new EclipseUiException("Cannot check children node existence", re);
+		}
+	}
+}