Index: tca.php
===================================================================
--- tca.php	(revision 3843)
+++ tca.php	(working copy)
@@ -111,7 +111,8 @@
 				'range' => array(
 					'upper' => mktime(0,0,0,12,31,2020),
 				)
-			)
+			),
+			'displayCond' => 'FALSE'			// this feature doesn't work yet therefore it's not shown by default
 		),
 		'freeze' => array(
 			'label' => 'LLL:EXT:lang/locallang_tca.xml:sys_workspace.freeze',