This document provides instructions for using the CIDOS LMS 2.5 system. It describes how to log in, add a new course, set up and edit an existing course, assign or enroll students manually or through self-enrollment, and delete a course. The steps include entering username and password to log in, filling out course details when adding a new course, enabling editing mode to update a course, selecting enrollment methods and settings for student self-enrollment, and confirming deletion of a course.