To edit or delete any content sub module in author engine select create content to open content engine features.
In the next screen select "Edit/Delete Content Module" button.
In the next window select the level 1 name or the topic from the drop down menu whose sub module you want to edit/delete.
Then select the sub module from the list and click on the edit button.
In the next screen you will be able to change content module name and include or exclude the chapters from the sub module. Click on save button to keep the changes.
