BulkMoveTasks/Template/board/column_dropdown.php

<?php if ($column['nb_tasks'] > 0 && $this->user->hasProjectAccess('TaskModificationController', 'update', $column['project_id'])): ?>
    <?php /* Rendered here (outside the menu <ul>) by the only available hook, then moved
             into the column's real dropdown <ul> by Asset/js/relocate.js so it sits next
             to the native entries. Hidden until relocated to avoid a flash in the header. */ ?>
    <li class="bulkmovetasks-menu-item" style="display: none;">
        <?= $this->modal->medium('arrows-h', t('Move tasks in bulk'), 'BulkMoveController', 'show', array(
            'plugin' => 'BulkMoveTasks',
            'project_id' => $column['project_id'],
            'column_id' => $column['id'],
            'swimlane_id' => $swimlane['id'],
        )) ?>
    </li>
<?php endif ?>