I'm Authoring in Lt - how do I switch to Preview Mode?

If you’ve opened an existing Lesson as an Administrator (Lessons > Lesson of Interest > Open) the Lesson will open in Preview Mode.

Once you're in Editing Mode (click the 'Edit' button) and have made some changes, you can Preview how the lesson will appear to students by selecting 'Preview' from the footer. To start editing again just select 'Exit Preview' from the bottom of the page: