If you work with Google Sites enough, you’ll realize that you can move pages around with ease. You can group them one under another to avoid the overwhelm of a long list of pages, but sometimes, you would have to create a blank page to mark the sections for organization. Now, as an improvement, Google Sites added a “New menu section” to their list of options.
GOOGLE SITES’ NEW PAGE AND CREATE A THEME FEATURES
Resource Link: https://blog.tcea.org/google-sites-new-features/