Yes, you can. 

To edit a scheduled report:

- Go to the last section under Reports, called Scheduled Reports

- Hover over a report, at the right, select the pencil button 

- You can add or delete the recipients of the report

- Also, you have the option to change the message with the report, along with the rest of the settings like Date range, frequency, time, and format (.pdf and .png).

To delete a scheduled report:

- Go to the last section under Reports, called Scheduled Reports

- Hover over a report, at the right, select the delete button