Benefit Templates are intended to be used when your organisation has one or more Benefits that are to be used in more than one Project.
Some organisations refer to this as their "menu", "framework", "calculator" or "KPIs". If you have not developed your own, you can find freely available examples on the internet here and here, or we can introduce you to customers who are happy to share theirs with you.
They are divided into two parts - the Benefit Template itself, and the Templated Benefit, which is specific to a particular Project. You can read more about them here and here.