diff --git a/org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/extension/base/ContextMenuSubMenuContributorBase.java b/org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/extension/base/ContextMenuSubMenuContributorBase.java
index 418b877ff540acb08e5ad504c693378f93a0918c..11e07fd287f6fee6ac41ad4823effb8540d54046 100644
--- a/org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/extension/base/ContextMenuSubMenuContributorBase.java
+++ b/org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/extension/base/ContextMenuSubMenuContributorBase.java
@@ -45,6 +45,8 @@ import org.fortiss.tooling.kernel.ui.service.IContextMenuService;
  * <p>
  * The class implements interface methods {@link #getMenuIcon()} and {@link #getMenuId()} returning
  * {@code null} by default. Classes providing an own icon or id should override them.
+ * <p>
+ * A usage example can be found in org.fortiss.af3.time.ui plug-in.
  * 
  * @param <T>
  *            Indicates the type of selection elements.