Drawers are invisible to students when your faculty member decides to hide them from you. Faculty may hide drawers in order to assess you on them later, or to go over later together.
Also, some ReelDx Skills assignments will cause drawers that may contain the answers to those assessments to be hidden until after you complete the assignment.
If you are missing content in your case you can:
Ask your faculty member if the case is laid out to their specifications, and if this content is meant to be hidden.
Email support@reeldx.com and we can confirm for you if the drawers of this case are in fact being hidden by faculty.