Add new include for study group leaders/helpers calculations

booking.admin.inc

@@ -269,7 +269,7 @@ function booking_admin() {
     $form['regn_options']['booking_default_state'] = array (
         '#type' => 'select',
         '#title' => t('Select Default State'),
-        '#description' => t('Select default state for residential address.'),
+        '#description' => t('Select default state for residential address. Select the last value (blank) in most cases, to ensure attendees choose a value for this field'),
         '#options' => _booking_state_options(),
         '#default_value' => variable_get('booking_default_state', 'NSW'),
     );