When you automate your report, it essentially passes 3 stages: data gathering, review/comment and ready for sending, which is reflected on your report's status.
1. When report is in data gathering stage, you can still edit the stats and automation settings, when you hover over it and click on the three dots in the corner.
2. When the report is in review/comment mode, you can approve it for delivery by reviewing the report.
When you click on the report it will take you to the view mode where the comments can be edited. Once you are done, you can click on 'done commenting':
3. After that you will be taken to your home screen, where your report status will be changed to 'ready for sending':
After the report is sent, it enters the 'automation cycle' once again, starting at the data gathering stage.