Index: typo3/classes/class.clearcachemenu.php
===================================================================
--- typo3/classes/class.clearcachemenu.php	(revision 4534)
+++ typo3/classes/class.clearcachemenu.php	(working copy)
@@ -38,6 +38,7 @@
 class ClearCacheMenu implements backend_toolbarItem {
 
 	protected $cacheActions;
+	protected $optionValues;
 
 	/**
 	 * reference back to the backend object
@@ -54,6 +55,7 @@
 	public function __construct(TYPO3backend &$backendReference = null) {
 		$this->backendReference = $backendReference;
 		$this->cacheActions     = array();
+		$this->optionValues     = array('all', 'pages');
 
 			// Clear cache for ALL tables!
 		if($GLOBALS['BE_USER']->isAdmin() || $GLOBALS['BE_USER']->getTSConfigVal('options.clearCache.all')) {
@@ -88,6 +90,19 @@
 			);
 		}
 
+			// hook for manipulate cacheActions
+		if(is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['additionalBackendItems']['cacheActions'])) {
+			foreach($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['additionalBackendItems']['cacheActions'] as $cacheAction) {
+				$hookObject = &t3lib_div::getUserObj($cacheAction); 
+
+				if(!($hookObject instanceof backend_cacheActionsHook)) {
+					throw new UnexpectedValueException('$hookObject must implement interface backend_cacheActionsHook', 1228262000);
+				}
+
+				$hookObject->manipulateCacheActions($this->cacheActions, $this->optionValues);
+			}
+		}
+
 	}
 
 	/**
@@ -96,11 +111,20 @@
 	 * @return  boolean  true if user has access, false if not
 	 */
 	public function checkAccess() {
-		return (
-			$GLOBALS['BE_USER']->isAdmin()
-			|| $GLOBALS['BE_USER']->getTSConfigVal('options.clearCache.pages')
-			|| $GLOBALS['BE_USER']->getTSConfigVal('options.clearCache.all')
-		);
+
+		if ($GLOBALS['BE_USER']->isAdmin()) {
+			return true;
+		}
+		
+		if (is_array($this->optionValues)) {
+			foreach($this->optionValues as $value) {
+				if ($GLOBALS['BE_USER']->getTSConfigVal('options.clearCache.' . $value)) {
+					return true;
+				}
+			}
+		}
+		return false;
+		
 	}
 
 	/**
Index: typo3/interfaces/interface.backend_cacheActionsHook.php
===================================================================
--- typo3/interfaces/interface.backend_cacheActionsHook.php	(revision 0)
+++ typo3/interfaces/interface.backend_cacheActionsHook.php	(revision 0)
@@ -0,0 +1,49 @@
+<?php
+/***************************************************************
+*  Copyright notice
+*
+*  (c) 2008 Steffen Kamper <info@sk-typo3.de>
+*  All rights reserved
+*
+*  This script is part of the TYPO3 project. The TYPO3 project is
+*  free software; you can redistribute it and/or modify
+*  it under the terms of the GNU General Public License as published by
+*  the Free Software Foundation; either version 2 of the License, or
+*  (at your option) any later version.
+*
+*  The GNU General Public License can be found at
+*  http://www.gnu.org/copyleft/gpl.html.
+*  A copy is found in the textfile GPL.txt and important notices to the license
+*  from the author is found in LICENSE.txt distributed with these scripts.
+*
+*
+*  This script is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*  GNU General Public License for more details.
+*
+*  This copyright notice MUST APPEAR in all copies of the script!
+***************************************************************/
+
+
+/**
+ * interface for classes which hook into ClearCacheMenu and manipulate CacheMenuItems array
+ *
+ * @author	Steffen Kamper <info@sk-typo3.de> 
+ * @package TYPO3
+ * @subpackage backend
+ */
+interface backend_cacheActionsHook {
+
+	/**
+	 * modifies CacheMenuItems array
+	 *
+	 * @param	array	array of CacheMenuItems
+	 * @param	array	array of AccessConfigurations-identifiers (typically  used by userTS with options.clearCache.identifier)
+	 * @return	
+	 */
+	public function manipulateCacheActions(&$cacheActions, &$optionValues);
+
+}
+
+?>
\ No newline at end of file