Your students have to follow the method of drip content after enabling and configuring the drip content feature. To unlock new videos they have to complete/watch a minimum duration of previous ones.

Figure 1. TeachingHub Locked Lesson

After watching a lesson, your students can unlock new lessons to watch. Also, your student's course learning progress will be updated automatically after unlocking a new lesson. Your students do not have to update manually if the drip content feature is enabled.

Note: The drip content feature works on Youtube, Vimeo, HTML5, and video files only.