add item to the dropdown menu

Plugin.php

@@ -8,9 +8,14 @@ class Plugin extends Base
 {
     public function initialize()
     {
-        // Add a "Move all tasks to another column" entry to the board column
-        // header dropdown. The hook passes the current $column and $swimlane.
+        // Render the "Move tasks in bulk" entry. The only column hook sits outside the
+        // native menu <ul>, so column_dropdown.php renders it hidden and relocate.js
+        // moves it into the menu (passes the current $column and $swimlane).
         $this->template->hook->attach('template:board:column:dropdown', 'bulkMoveTasks:board/column_dropdown');
+
+        $this->hook->on('template:layout:js', array(
+            'template' => 'plugins/BulkMoveTasks/Asset/js/relocate.js',
+        ));
     }
 
     public function getPluginName()