Index: Classes/Utility/Extension.php
===================================================================
--- Classes/Utility/Extension.php	(revision 1493)
+++ Classes/Utility/Extension.php	(working copy)
@@ -315,6 +315,63 @@
 
 		t3lib_extMgm::addModule($main, $sub, $position);
 	}
+
+	/**
+	 * Registers a "Function menu module" ('third level module') to an existing function menu for some other backend module
+	 * The arguments values are generally determined by which function menu this is supposed to interact with.
+	 * FOR USE IN ext_tables.php FILES
+	 * 
+	 * @param string $extensionName The extension name (in UpperCamelCase) or the extension key (in lower_underscore)
+	 * @param string $moduleName The module name
+	 * @param array $controllerActions is an array of allowed combinations of controller and action stored in an array (controller name as key and a comma separated list of action names as value, the first controller and its first action is chosen as default)
+	 * @param array $config The configuration options of the module (icon, locallang.xml file)
+	 * @return void
+	 */
+	public static function registerModuleFunction($extensionName, $moduleName, array $controllerActions, $config = array()) {
+		if (empty($extensionName)) {
+			throw new InvalidArgumentException('The extension name was invalid (must not be empty and must match /[A-Za-z][_A-Za-z0-9]/)', 1239891989);
+		}
+		$extensionKey = $extensionName; // FIXME This will break if the $extensionName is given as BlogExample
+		$extensionName = str_replace(' ', '', ucwords(str_replace('_', ' ', $extensionName)));
+
+		$path = t3lib_extMgm::extPath($extensionKey, 'Classes/Controller/');
+
+		if (!is_array($config) || count($config) == 0) {
+			$config['title'] = 'Unknown title';
+			$config['workspaces'] = '';
+		}
+		if (!isset($config['menuKey']) || empty($config['menuKey'])) {
+			$config['menuKey'] = 'function';
+		}
+
+		$controllers = array_keys($controllerActions);
+		$defaultController = $controllers[0] . 'Controller';
+		$defaultControllerFullName = 'Tx_' . $extensionName . '_Controller_' . $defaultController;
+
+		t3lib_extMgm::insertModuleFunction(
+			$moduleName,
+			$defaultControllerFullName,
+			$path . $defaultController . '.php',
+			$config['title'],
+			$config['menuKey'],
+			$config['workspaces']
+		);
+
+			// Register additional Extbase information
+		//$moduleConfig = &$GLOBALS['TBE_MODULES_EXT'][$moduleName]['MOD_MENU'][$config['menuKey']][$defaultControllerFullName];
+		//$moduleConfig['extensionKey'] = $extensionKey;
+		//$moduleConfig['extensionName'] = $extensionName;
+		//$moduleConfig['controllerActions'] = $controllerActions;
+		//$moduleConfig['config'] = $config;
+		$moduleConfig = array(
+			'name' => $moduleName,
+			'extensionKey' => $extensionKey,
+			'extensionName' => $extensionName,
+			'controllerActions' => $controllerActions,
+			'config' => $config,
+		);
+		$GLOBALS['TBE_MODULES'][$defaultControllerFullName] = $moduleConfig;
+	} 
 	
 	// TODO PHPdoc
 	public static function convertCamelCaseToLowerCaseUnderscored($string) {
@@ -492,4 +549,4 @@
 	}
 	
 }
-?>
+?>
\ No newline at end of file