start making csv import/export more dynamic

booking.admin.inc

@@ -429,6 +429,7 @@ function booking_admin()
       )
     )
   );
+  
   $form['regn_options']['booking_enable_skills'] = array(
     '#type' => 'radios',
     '#title' => t('Enable special skills information?'),
@@ -522,6 +523,16 @@ function booking_admin()
     '#size' => 150,
     '#maxlength' => 2000
   );
+  
+  $form['management']['booking_import_include_fields_dynamic'] = array(
+    '#type' => 'select',
+    '#multiple' => TRUE,
+    '#title' => t('Select database fields'),
+    '#description' => t('Select database fields to import from an uploaded CSV file. Ensure you hold down control/command when selecting multiple options.'),
+    '#options' => _booking_get_person_fields(),
+    '#default_value' => variable_get('booking_import_include_fields_dynamic', ''),
+  );  
+  
   return system_settings_form($form);
 }