In the general settings of a Regular page, you can:
Edit the Page name
Select the page Parent folder (if you have one)
Edit the Slug: www.domain.com/this-is-the-slug
Enable Authentication so that only authenticated users can access that page
In the general settings of a CMS page, you can:
Edit the Page name
Select the page Parent folder (if you have one)
Select a collection
Optionally you can then change the route (the category slug used in the URL, e.g. www.domain.com/blog).
The Data key is set automatically to slug.
Click Save before you leave this tab.