diff --git a/wp-admin/options.php b/wp-admin/options.php
index 80a07190df..83ebd7a62e 100644
--- a/wp-admin/options.php
+++ b/wp-admin/options.php
@@ -29,6 +29,17 @@ $capability = 'manage_options';
 if ( empty($option_page) ) // This is for back compat and will eventually be removed.
 	$option_page = 'options';
 else
+
+	/** 
+	 * Filter the capability required when using the Settings API. 
+	 * 
+	 * By default, the options groups for all registered settings require the manage_options capability. 
+	 * This filter is required to change the capability required for a certain options page. 
+	 * 
+	 * @since 3.2.0
+	 * 
+	 * @param string $capability The capability used for the page, which is manage_options by default. 
+	 */
 	$capability = apply_filters( "option_page_capability_{$option_page}", $capability );
 
 if ( !current_user_can( $capability ) )
@@ -95,11 +106,25 @@ if ( !is_multisite() ) {
 } else {
 	$whitelist_options['general'][] = 'new_admin_email';
 	$whitelist_options['general'][] = 'WPLANG';
-
+	
+	/**
+	 * Toggle post-by-email functionality.
+	 *
+	 * @since 3.0.0
+	 *
+	 * @param bool True or false, based on whether post-by-email configuration is enabled or not.
+	 */
 	if ( apply_filters( 'enable_post_by_email_configuration', true ) )
 		$whitelist_options['writing'] = array_merge($whitelist_options['writing'], $mail_options);
 }
 
+/**
+ * Filter the options white list. 
+ * 
+ * @since 2.7.0
+ *
+ * @param array White list options.
+ */
 $whitelist_options = apply_filters( 'whitelist_options', $whitelist_options );
 
 /*