How to create a template:
There are 3 ways to create a template.
From your Templates library in Settings.
Adding templates from the public library at templates.plutio.com
Save something already created within your Plutio account. For example, to save a project as a template, simply choose Save as a template from the Actions menu of an existing project.
How to apply a template:
How a template is applied difference depending on its type, for a detailed guide on applying templates check this article.