Drupal 7 has a contributed module "Nodequeue" which allows users to collect nodes in an arbitrarily ordered list. It provides a simple drag-and-drop interface to manually order any queue. If you want to create a node to the nodequeue programmatically then you need to read this article. For creating you need to have two things: node id $nid and the queue name queue_name. Here how it can done, we firstly load the nodequeue by name and then add the node to the queue using function nodequeue_subqueue_add. Below code snippets adds a node to the queue.