Site creation
When you first login into pages you only have one site which is the main site and if you want to manually create a new site, you can go to Sites → Add New in the Network Admin dashboard.
You will then be redirected to this page where you can set the site name which will be a subdirectory only of the main Pages site. It will be like this: https://stagingpages.dilc.info/your_site_name.