Own template for new.html

Thanks for the answer. That is not quite what I am looking for. I go in Pinegrow to Create a new page or project, then to Plain HTML and new.html.
It opens a new page with the following content:

<html long="en">
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="description" content="">
        <meta name="author" content="">
        <title>New page</title>
        <link href="style.css" rel="stylesheet">
    </head>
    <body>
        <div class="pg-empty-placeholder"></div>
    </body>
</html>

However, I would like to have this content adapted into that:

<!DOCTYPE html>
<html lang="de-DE">
    <head>
        <meta charset="utf-8"/>
        <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
        <title>page name</title>
    </head>
    <body>
    </body>
</html>

Can I save this as a template?