diff --git a/Controller/BulkMoveController.php b/Controller/BulkMoveController.php
new file mode 100644
index 0000000..b0ec250
--- /dev/null
+++ b/Controller/BulkMoveController.php
@@ -0,0 +1,103 @@
+<?php
+
+namespace Kanboard\Plugin\BulkMoveTasks\Controller;
+
+use Kanboard\Controller\BaseController;
+use Kanboard\Core\Controller\AccessForbiddenException;
+use Kanboard\Model\TaskModel;
+
+/**
+ * Move every task of a board column (within one swimlane) to another column.
+ */
+class BulkMoveController extends BaseController
+{
+    /**
+     * Render the modal: pick the destination column.
+     */
+    public function show()
+    {
+        $project = $this->getProject();
+        $this->checkAccess($project['id']);
+
+        $column_id = $this->request->getIntegerParam('column_id');
+        $swimlane_id = $this->request->getIntegerParam('swimlane_id');
+
+        // Offer every column of the project except the source one as a destination.
+        $columns = $this->columnModel->getList($project['id']);
+        unset($columns[$column_id]);
+
+        $this->response->html($this->template->render('bulkMoveTasks:board/move_all_tasks', array(
+            'project' => $project,
+            'nb_tasks' => $this->taskFinderModel->countByColumnAndSwimlaneId($project['id'], $column_id, $swimlane_id),
+            'column' => $this->columnModel->getColumnTitleById($column_id),
+            'swimlane' => $this->swimlaneModel->getNameById($swimlane_id),
+            'columns_list' => $columns,
+            'values' => array(
+                'column_id' => $column_id,
+                'swimlane_id' => $swimlane_id,
+            ),
+        )));
+    }
+
+    /**
+     * Perform the move and return to the board.
+     */
+    public function move()
+    {
+        $project = $this->getProject();
+        $this->checkAccess($project['id']);
+
+        $values = $this->request->getValues();
+        $src_column_id = isset($values['column_id']) ? (int) $values['column_id'] : 0;
+        $dst_column_id = isset($values['dst_column_id']) ? (int) $values['dst_column_id'] : 0;
+        $swimlane_id = isset($values['swimlane_id']) ? (int) $values['swimlane_id'] : 0;
+
+        $columns = $this->columnModel->getList($project['id']);
+
+        if ($src_column_id === 0 || $dst_column_id === 0 || $src_column_id === $dst_column_id || ! isset($columns[$dst_column_id])) {
+            $this->flash->failure(t('Please choose a different destination column.'));
+        } else {
+            $moved = $this->moveAllTasks($project['id'], $src_column_id, $dst_column_id, $swimlane_id);
+            $this->flash->success(t('%d task(s) moved from "%s" to "%s".', $moved, $this->columnModel->getColumnTitleById($src_column_id), $this->columnModel->getColumnTitleById($dst_column_id)));
+        }
+
+        $this->response->redirect($this->helper->url->to('BoardViewController', 'show', array('project_id' => $project['id'])));
+    }
+
+    /**
+     * Move every open task of (source column, swimlane) to the end of the
+     * destination column, keeping their relative order. Returns the count moved.
+     */
+    private function moveAllTasks($project_id, $src_column_id, $dst_column_id, $swimlane_id)
+    {
+        $task_ids = $this->db->table(TaskModel::TABLE)
+            ->eq('project_id', $project_id)
+            ->eq('column_id', $src_column_id)
+            ->eq('swimlane_id', $swimlane_id)
+            ->eq('is_active', TaskModel::STATUS_OPEN)
+            ->asc('position')
+            ->findAllByColumn('id');
+
+        $position = $this->taskFinderModel->countByColumnAndSwimlaneId($project_id, $dst_column_id, $swimlane_id) + 1;
+        $moved = 0;
+
+        foreach ($task_ids as $task_id) {
+            if ($this->taskPositionModel->movePosition($project_id, $task_id, $dst_column_id, $position, $swimlane_id)) {
+                $position++;
+                $moved++;
+            }
+        }
+
+        return $moved;
+    }
+
+    /**
+     * Allow only users who can modify tasks in this project.
+     */
+    private function checkAccess($project_id)
+    {
+        if (! $this->helper->user->hasProjectAccess('TaskModificationController', 'update', $project_id)) {
+            throw new AccessForbiddenException();
+        }
+    }
+}