Add checkboxes in list view to move tasks to another column at once

app/Template/task_list/header.php

@@ -6,6 +6,24 @@
             <?= t('%d task', $paginator->getTotal()) ?>
         <?php endif ?>
     </div>
+    <?php if (isset($show_items_selection)): ?>
+        <?php if ($this->user->hasProjectAccess('TaskModificationController', 'save', $project['id'])): ?>
+            <div class="list-item-links">
+                <a href="#" data-list-item-selection="all"><?= t('Select All') ?></a> / <a href="#" data-list-item-selection="none"><?= t('Unselect All') ?></a>
+            </div>
+            <div class="list-item-actions list-item-action-hidden">
+                -&nbsp;
+                <div class="dropdown">
+                    <a href="#" class="dropdown-menu dropdown-menu-link-icon"><strong><?= t('Apply action') ?> <i class="fa fa-caret-down"></i></strong></a>
+                    <ul>
+                        <li>
+                            <a href="<?= $this->url->href('TaskBulkMoveColumnController', 'show', ['project_id' => $project['id']]) ?>" data-list-item-action="modal"><?= t('Move selected tasks to another column') ?></a>
+                        </li>
+                    </ul>
+                </div>
+            </div>
+        <?php endif ?>
+    <?php endif ?>
     <div class="table-list-header-menu">
         <?php if (isset($project)): ?>
             <?php if ($this->user->hasSubtaskListActivated()): ?>