diff --git a/code/control/CMSSubTreeAdmin.php b/code/control/CMSSubTreeAdmin.php
new file mode 100644
index 0000000..62d692d
--- /dev/null
+++ b/code/control/CMSSubTreeAdmin.php
@@ -0,0 +1,34 @@
+<?php
+
+class CMSSubTreeAdmin extends CMSMain {
+	// These variables are 2.3-specific; in 2.2.x you will need to edit _config.php
+	static $url_segment = 'subtree';
+	static $menu_title = 'Blog Content';
+	
+	function SiteTreeAsUL() {
+		// This piece of code just gets us a root ID to use
+		$blogRoot = DataObject::get_one("BlogHolder");
+		if(!$blogRoot) {
+			$blogRoot = new BlogHolder();
+			$blogRoot->write();
+		}
+		
+		// This code is what you will need to do to make a subtree version of CMSMain
+		$this->generateDataTreeHints();
+		$this->generateTreeStylingJS();
+		
+		// blogRoot->ID is your root node
+		$siteTree = $this->getSiteTreeFor("SiteTree", $blogRoot->ID);
+		
+		// This code is copied from getSiteTreeFor(), because getSiteTreeFor has it hard-coded to only generate if rootID = 0
+		$rootLink = $this->Link() . '0';
+		if($this->hasMethod('getCMSTreeTitle')) $treeTitle = $this->getCMSTreeTitle();
+		else $treeTitle =  _t('LeftAndMain.SITECONTENTLEFT',"Site Content",PR_HIGH,'Root node on left');
+		$siteTree = "<ul id=\"sitetree\" class=\"tree unformatted\"><li id=\"record-0\" class=\"Root nodelete\"><a href=\"$rootLink\"><strong>$treeTitle</strong></a>"
+			. $siteTree . "</li></ul>";
+
+		return $siteTree;
+	}
+}
+
+?>
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