diff --git a/cake/libs/set.php b/cake/libs/set.php
index dc3566936..c66d4cccc 100644
--- a/cake/libs/set.php
+++ b/cake/libs/set.php
@@ -370,6 +370,10 @@ class Set extends Object {
  * - /Post/Comment[author_name=john]/../name (Selects the name of all Posts that have at least one Comment written by john)
  * - /Posts[title] (Selects all Posts that have a 'name' key)
  * - /Comment/.[1] (Selects the contents of the first comment)
+ * - /Comment/.[:last] (Selects the last comment)
+ * - /Comment/.[:first] (Selects the last comment)
+ * - /Comment[text=/cakephp/i] (Selects the all comments that have a text matching the regex /cakephp/i)
+ * - /Comment/@* (Selects the all key names of all comments)
  * 
  * Other limitations:
  * - Only absolute paths starting with a single '/' are supported right now