Going to the Advanced tab of Form Workflow Plus will give you some more options.
1/ Responses settings
=> In order to enable "Send back to requester" functionality, complete first 3/, then tick "Allow Send back to requester"
=> Tick "Allow on Hold" to authorize reviewers to put requests on hold
2/ Validation auto reminder
Click on "Activate reminder" for reviewers to be reminded by email once a day of all their pending "Waiting for validation" requests.
3/ Requester email
Select the Sheet column containing the requester email address has 2 functions:
- The requester will be informed by email the status of their workflow request at the end of each Approval Step.
- To enable "Send back to requester" functionality in response settings 1/
4/ Final notification
Enter the email address of the person(s) you want to be notified in cc of the final notification to the requestor.
5/ Email template
Click on + to personalize your email template.
Choose from the available fields list to personalize your template.