Can I set lesson active dates (start and due dates)? 

Active dates are set at the Lesson level. 

1. Go to the Lesson where you want to set a deadline. 
2. Click on “Edit Lesson Info”
3. Tick the checkbox next to “Lesson with Deadline”
4. Set the Start Date (the date when your students can access the Lesson) and Due Date (the last day that your students can submit recordings for all Exercises under the Lesson).