To email an invoice in the Manage Statement module:

1. Navigate to Billing > Patient Statements.
2. Click on the 2nd tab: Manage Statement(s).
3. Use the filters "Sort By", "Paid Status", and "Invoice" to generate a table. 
4. Under the selected invoice, click on the three horizontal dots (...) under the Actions column.
5. Select Email Invoice. 

Note: The patient's email in the email statement screen will be fetched from the patient info module. The email address cannot be edited. The invoice PDF file will be automatically attached to the email.