You can delete content that you have added to a study list. This gives you even more flexibility when creating and customizing your study lists.
First click on your study list and the content you have added will appear:
Go to the content you want to delete. You will see a small "Delete" symbol (blue garbage can) in the top right-hand corner of the learning unit:
Click on the trash can in the top right-hand corner to remove the module from your study list.