Saving and Publishing the Page

Refer to the image below to understand the quick options related to your custom page. Here you can live preview the page, copy the URL, duplicate the page, and hide the page.

Custom page quick manage options

Once you are done with the customization of the page to make it live simply click on the Publish page,

If you wish to add the custom page URL to the header, navigate to Site Admin > Appearance > Theme > Theme Setting and add the page URL and menu item name in the Custom Menu Item section.