diff --git a/code/CMSMain.php b/code/CMSMain.php
index 03238ccb..6830ad53 100644
--- a/code/CMSMain.php
+++ b/code/CMSMain.php
@@ -455,6 +455,9 @@ JS;
 		return $this->returnItemToUser($p);
 	}
 
+	/**
+	 * @uses LeftAndMainDecorator->augmentNewSiteTreeItem()
+	 */
 	public function getNewItem($id, $setID = true) {
 		list($dummy, $className, $parentID, $suffix) = explode('-',$id);
 		if(Translatable::is_enabled()) {
diff --git a/code/LeftAndMain.php b/code/LeftAndMain.php
index ef756e7d..bf7c9980 100644
--- a/code/LeftAndMain.php
+++ b/code/LeftAndMain.php
@@ -64,6 +64,10 @@ class LeftAndMain extends Controller {
 		'themedcss' => array(),
 	);
 	
+	/**
+	 * @uses LeftAndMainDecorator->init()
+	 * @uses LeftAndMainDecorator->accessedCMS()
+	 */
 	function init() {
 		Director::set_site_mode('cms');
 		
@@ -231,8 +235,12 @@ class LeftAndMain extends Controller {
 		
 		Requirements::customScript('Behaviour.addLoader(hideLoading);');
 
+		// DEPRECATED 2.3: Use init()
 		$dummy = null;
 		$this->extend('augmentInit', $dummy);
+		
+		$dummy = null;
+		$this->extend('init', $dummy);
 	}
 
 	//------------------------------------------------------------------------------------------//
diff --git a/code/LeftAndMainDecorator.php b/code/LeftAndMainDecorator.php
new file mode 100644
index 00000000..811382c0
--- /dev/null
+++ b/code/LeftAndMainDecorator.php
@@ -0,0 +1,21 @@
+<?php
+/**
+ * Plug-ins for additional functionality in your LeftAndMain classes.
+ * 
+ * @package cms
+ * @subpackage core
+ */
+abstract class SiteTreeDecorator extends Extension {
+
+	function init() {
+	}
+	
+	function accessedCMS() {
+	}
+	
+	function augmentNewSiteTreeItem(&$item) {
+	}
+
+}
+
+?>
\ No newline at end of file