Congratulations! You've created a new template, but how do you use it? 

You have two options! The first is to click on the three little dots of the template you want to use, then click on "Create a lease from a template": 

The second possibility is to click directly on the "+" button of "Leases", when the pop-up window appears. You will just have to choose the template you want to use to start a new lease: