Edit/Delete Content: This option allows you to change level names, type, and actual notes of already existing content. It can also be used to remove any content permanently.
In author engine select create content to open content engine features.
In the next screen select "Edit/Delete Content" button.
In the next window you will be shown a list of all notes, which can be filtered by selecting level 1, level 2 and level 3 titles from dropdowns provided.
Once you have found the lesson you want to edit or delete select it from the list and click on edit button.
Next window will give you option to change all details for the selected lesson including levels to which it belong, lesson type and lesson file. Make necessary changes and click on "Edit Content" button to save changes.
Use "Delete Content" button to remove lesson.