uploads - Add media library items to Menus using the Customizer (via Media Manager not URL)

You can add links to files in the media library URL via the Custom Links panel of the Customizer but for clients this requires multiple steps including cutting and pasting a URL from the media library (from a box that is much smaller than the URL!) and it's not the best user experience. I am surprised that

1. This isn't already part of WP Core
2. I couldn't find a plugin to handle this.

I have looked into the settings but cannot seem to figure this out.

• $wp_customize->add_section
• $wp_customize->add_setting
• $wp_customize->add_control

As my backend coding is not great I have mocked up a visual.

N.B. Someone else has added it to WordPress ideas here. Votes appreciated.