Index: Classes/MVC/Controller/ActionController.php
===================================================================
--- Classes/MVC/Controller/ActionController.php	(revision 1499)
+++ Classes/MVC/Controller/ActionController.php	(working copy)
@@ -81,6 +81,16 @@
 	protected $errorMethodName = 'errorAction';
 
 	/**
+	 * The module menu items array. Each key represents a key for which values can range between the items in the array of that key.
+	 * @var array
+	 * @see initializeModuleMenu()
+	 * @api
+	 */
+	protected $moduleMenu = array(
+			'function' => array()
+		);
+
+	/**
 	 * Injects the reflection service
 	 *
 	 * @param Tx_Extbase_Reflection_Service $reflectionService
@@ -319,6 +329,29 @@
 	}
 
 	/**
+	 * Initializes the module function menu before invoking an action method.
+	 * 
+	 * Override this method if your extension provides a function menu.
+	 * 
+	 * @param string $moduleName
+	 * @return void
+	 * @api
+	 */
+	public function initializeModuleMenu($moduleName) {
+	}
+
+	/**
+	 * Returns the module menu.
+	 * 
+	 * @return array
+	 * @see initializeModuleMenu()
+	 * @api
+	 */
+	public function getModuleMenu() {
+		return $this->moduleMenu;
+	}
+
+	/**
 	 * Initializes the controller before invoking an action method.
 	 *
 	 * Override this method to solve tasks which all actions have in
Index: Classes/Dispatcher.php
===================================================================
--- Classes/Dispatcher.php	(revision 1499)
+++ Classes/Dispatcher.php	(working copy)
@@ -432,11 +439,11 @@
 			'actionName' => '',
 		);
 
-		$set = t3lib_div::_GP('SET');
-		if (!$set) {
-				// Early return
-			return $controllerAction;
-		}
+		$config = $GLOBALS['TBE_MODULES'][$module];
+		$controller = t3lib_div::makeInstance('Tx_' . $config['extensionName'] . '_Controller_' . $defaultController . 'Controller');
+		$controller->initializeModuleMenu($module);
+		$moduleMenu = $controller->getModuleMenu();
+		$set = t3lib_BEfunc::getModuleData($moduleMenu, t3lib_div::_GP('SET'), $module);
 
 		$moduleFunction = $set['function'];
 		$matches = array();
@@ -449,6 +456,7 @@
 			if (isset($functions[$moduleFunction])) {
 				$controllerAction['controllerName'] = $defaultController;
 				$controllerAction['actionName'] = 'extObj';
+				// TODO: !VERY IMPORTANT! find a way to pass $moduleFunction as argument to the extObjAction
 			}
 		}