PL does not seem to have the capability to create a new project from a template but, it will open a MS project template if you rename it from *.mpt to *.mpp To create your own templates, save an existing project as e.g. “Anual shut template”, and use the Open button to open it, and the Save as button to rename it, and preserve the template.

It does happen that we have recurring (annualy for instance) project types, of which a certain amount of task will always be the same (e.g. shut down, and start up tasks) so "create from template" can be quite useful.