The Customizer was always great for going through with big changes on his website. But sometimes changes had to be done before specific schedule time when you clicked save button. Not on specific time from a visitor’s point of view.
Now one of the great things is added in updated Customizer of WordPress 4.9. Now Admin can able to save and schedule changes.
The updated Customizer WordPress 4.9 of has replaced the Save & Publish button. You will now see Publish with a setting icon next to it. When you click on the setting icon, you can see a menu with some new options like: Save Draft, Schedule, and Publish. This will give you the same control that you have in the main dashboard with your regular content.
Having this kind of featured in the Customizer helps reduce the workload and easy to customisation. Sometime time limit or some sensitive time when you can handle without needing to sit by the computer. For that time your scheduled Save & Publish to perfection.