You can achieve this using the New Billing Run feature under the Invoices main menu.
While this feature is typically used for Bulk Invoicing, it can also be used to produce a single invoice for multiple Jobs for the same Customer.
1 - Click on Invoices main menu
2 - Click on the "New Billing Run" button
3 - Use the filter options to list the Jobs that you wish to invoice. In the example below, we have searched for the Customer, "Barkers Mens Clothing", using the "Search Text" filter option by clicking on the "Search Text" button
4 - Type the Customer name in the search box that appears
5 - Click "Search" to filter the list accordingly
6 - In the filtered list that appears, place a tick in the check box to left of each job you wish to invoice. NOTE: You can either check each one individually or you can place a tick in the top Check Box to select all
6 - Click on the "Next " button
7 - Click on "Invoice by Customer" to produce one invoice for all the Jobs selected for a Customer
8 - Select the information from the Job that you want to appear on the invoice above each of the Job's time and material costs. You can also change the job status to show as complete with the options listed below.
9 - Click "next" to confirm the selections, then click 'finish'
10 - The system then generates an invoice for all the Jobs selected for a Customer.
Notice the Job Reference and Job Description text lines on the invoice above each of the Job's time and material cost lines.
The following is an example of what the Invoice print out looks like in this example.