The default hierarchy of your projects is Course > Lesson > Topic. An admin on your account can change the labels to better match the type of training you are creating.
1. To change the labels, click on the Customize project gear icon in the top right corner of the Project menu next to the course Collaborators sign.
2. When you see the dialog, choose Hierarchy labels tab and a section will appear as follows:
3. Click Save. The changes will be visible in the Design, Blueprint and Preview sections, for everyone on the project, and the published course for all the learners.
Note: Collaborators on a project will not see the gear icon.