I am just learning SugarCRM and I am having a difficulty understanding how a field group is set. I can refer to the Accounts section. In both the detail and edit view the billing and shipping address are specified as billing_address and shipping_address for which I find no field definition. Instead, when displayed it brings up on the page the street address, country, postal code etc. as a group. Can someone point me to where this kind of grouping is specified?

Thank you

Brian