Blank templates can include anything you might have to add every time you start a document of the type the template is based on.
This will save your time by not having to enter same information multiple times and/or do the formatting each time you begin a new document.
To create a blank template:
Once the blank templates have been uploaded, you can easily copy or move it to Document templates folder, view their properties, update with newest versions, add to favourites, etc.