Elgg-Lorea-Hydra/mod/questions/views/default/sidebar.php

<?php
/**
 * Questions sidebar
 */

echo elgg_view('page/elements/comments_block', array(
        'subtypes' => 'question',
        'owner_guid' => elgg_get_page_owner_guid(),
));

echo elgg_view('page/elements/tagcloud_block', array(
        'subtypes' => 'question',
        'owner_guid' => elgg_get_page_owner_guid(),
));