To Invoices, go to:
Click--> Setting, and Click--> Invoices.
Use WHB-WebHosting Billing for billing only. Perfect for businesses to issue custom invoices, notify customer and collect money. Create a custom invoice event without any product configuration. You decide what you invoice. You will be able to configure the Invoices, Proforma Invoicing / Sequential Invoice Numbering, Refund setup and Add background settings.