All the LMSes we have examined provides a file management system, however none of these systems allows user to separate the files into different sections. For example, a lecture video may contain information related to several topics in the course, and therefore learners need to spend some time to locate the section they want to watch. A solution to this limitation is to divide the video into different segments by video-editing software, but apart from the unnecessary labor required, the large number of clips makes file management inefficient, hence this solution is not feasible.