Customizer Improvements in WordPress 4.7

WordPress 4.7 has been the most active release on record for the customize component, with four major feature projects merging and shipping with 4.7 and over 90 tickets closed as fixed. This post summarizes the highlights of the user and developer-facing changes. 4.7 Customizer Feature Projects
Create pages within live preview during site setup
Add new pages while building menus and setting a static front page; outline your site directly in the customizer.
This project began with the ability to create posts and pages direction from the available menu items panel in the customizer, as originally proposed near the end of the 4.6 cycle:
The current navigation menus system is built around a paradigm that every menu item must be associated with an existing piece of content. However, this is problematic for new users, who may find themselves with the opportunity to build a menu before creating any content. #34923 seeks to improve this experience and eliminate this usability … Continue reading
Subsequent changes also added the ability to create new pages when assigning the front page and posts page in the Static Front Page section. Because this is now built into the core dropdown-pages
Source: https://managewp.org/articles/13929/customizer-improvements-in-wordpress-4-7

source https://williechiu40.wordpress.com/2016/12/01/customizer-improvements-in-wordpress-4-7/