diff --git a/Repositories/statistics/config/inc.vars.es_src.php b/Repositories/statistics/config/inc.vars.es_src.php
index d934608..1610e53 100755
--- a/Repositories/statistics/config/inc.vars.es_src.php
+++ b/Repositories/statistics/config/inc.vars.es_src.php
@@ -75,11 +75,18 @@
 			"keys" => array(
 				"public" => array(
 					"action" => array(
-						"maxlength" => "20",
+						"maxlength" => "25",
 						"type" => "string",
 						"action" => UNSET_REQUEST,
 						"pattern" => "/[^\w]/i",
-						"values" => array('one','two'),
+						"values" => array(
+							'show_detail_date',
+							'show_detail_country',
+							'show_detail_eprint',
+							'cumulative_usage',
+							'cumulative_usage_country',
+							'cumulative_usage_map',
+						),
 					),
 					"year" => array(
 						"maxlength" => "50",
@@ -102,14 +109,13 @@
 						"type" => "string",
 						"action" => UNSET_REQUEST,
 						"pattern" => "/[^\w]/i",
-						"values" => array('one','two'),
+						"values" => array('4w','all',''),
 					),
 					"code" => array(
-						"maxlength" => "3",
+						"maxlength" => "4",
 						"type" => "string",
 						"action" => UNSET_REQUEST,
-						"pattern" => "/[^\w]/i",
-						"values" => array('one','two'),
+						"pattern" => "/[^@\w]/i",
 					),
 					/* maxlength here refers to largest integer */
 					"id" => array(