Within a single invoice, you can set a different service address and/or service date on each line item.

Navigate to the invoice, click on the ‘More Details’ link right above the Subtotal section.

Screenshot from 2015-04-24 22:14:04

 

This will enable the ‘Service Date’ and ‘Property’ fields which you can fill out as/if needed.

Screenshot from 2015-04-24 21:42:26