Theme Customizer – Nested Sections?

2 comments

1. There is no core customizer behavior that supports nested sections. However, you can roll your own customizer control which contains its own accordion sections and other controls.

   Keep in mind that each control relates to exactly one theme_mod variable, so my suggestion would be to implement a fairly generic control that is collapsible and contain a variety of form elements.

2. Old question but new Answer

   There is now ways to add nested sections, with Customizer Panels. Panels can group customizer sections together and can also set access permission.

   see https://developer.wordpress.org/reference/classes/wp_customize_manager/add_panel/

   Example:

   $wp_customize->add_panel( 'panel_id', array(
       'priority'       => 10,
       'capability'     => 'edit_theme_options',
       'theme_supports' => '',
       'title'          => '',
       'description'    => '',
   ) );
   

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