You can edit the copy of an email (ex. Advocate Reward Paid Email) in Editor: 


1. Click on Campaign 


2. Navigate to Editor tab 


3. Switch to the Advocate Reward Paid Email view


4. Update the copy and click on "Save Changes"


5. Remember to update the copy in the Advocate Reward Paid Email Reminder view too. 


6. Repeat the same steps for any other campaigns.