Head to the 'Reports' section

From the row where all social media icons are displayed, select 'Saved and Custom Reports'

Select the existing scheduled report you wish to edit and click 'Run'

Click on the arrow pointing down button located at the top right hand side of the screen and click 'Schedule'

All your scheduled reports will be listed underneath the green 'Download Now" button and the option to edit emails will be displayed

Finally, add or remove email addresses of your choice