How to add more than one product to Sales Orders?

How to add more than one product to Sales Orders?

Hello,

we're creating Sales Order template (in Inventory Templates). By adding "Products:  ${Products.Product Name}" line we can bring out one product in final Sales Order page (for print or pdf), but how to bring out more than one product? if more than one product is sold and Sales order has say 2 or 3 different products - what to add to the template? 
Products: ....  ${Products.Product Name} ....  ?

Thank you