When the Invoice Section is clicked, it will expand to reveal all invoice details, as below:

Expanded Invoice section shows invoice details and Invoice Options.

The expanded sections show all invoice details including line items and amounts.

There are four option buttons related to the Invoice - PDF (to view the PDF version of the Invoice), EDIT (to adjust the Invoice details), PAY (to record and take card payment for the invoice) and EMAIL (to send a copy of the Invoice, or Paid Invoice) directly to the customer.