The Add Content to a Lesson function is performed from the Browse Content or Content Search Results functions.
Procedure 7.5. Add Content to a Lesson
Select the checkbox for the learning object you wish to add to a lesson or press the Select button to select all learning objects on the current page to add. Pressing the Select button again clears all of the checkboxes and may be used to toggle the state of the checkboxes for all learning objects on the currently displayed page.
Select a lesson from the list and press the Add to Lesson button to add the selected learning objects to the selected lesson.
The Edit a Lesson function is called to allow further editing of the lesson.