diff --git a/migrate/hosting_migrate.batch.inc b/migrate/hosting_migrate.batch.inc
index d8ba967..4243206 100644
--- a/migrate/hosting_migrate.batch.inc
+++ b/migrate/hosting_migrate.batch.inc
@@ -105,6 +105,21 @@ function hosting_migrate_platform($form, $form_state, $node) {
             $link = t('Profile not found');
           }
           $row[] = $link;
+          if ($type == 'passed') {
+            $header[] = t('Confirm');
+
+            // Add checkboxes for opt-out.
+            // TODO converting the whole table to 'tableselect' might also be an option.
+            // See: https://api.drupal.org/api/drupal/developer%21topics%21forms_api_reference.html/7.x#tableselect
+            $row[] = theme('checkbox', array(
+              // TODO FIX array structure.
+              '#type' => 'checkbox',
+              '#name' => 'do' . $site_id,
+              '#checked' => TRUE,
+              '#return_value' => $site_id,
+            ));
+          }
+
           $rows[] = array(
             'data' => $row,
             'class' => array('hosting-' . _hosting_migrate_site_list_class($status)),
@@ -198,6 +213,9 @@ function hosting_migrate_platform_submit($form, &$form_state) {
 
       $operations = array();
       foreach ($form_state['storage']['passed'] as $nid => $url) {
+        //
+        // TODO check checkbox value and 'continue' if unchecked.
+        //
         $operations[] = array(
           'hosting_migrate_platform_submit_batch',
           array($nid, $target_platform, $url, $task->vid, $target_db),