panel_id

https://developer.wordpress.org/themes/customize-api/customizer-objects/#panels

According to this, the ID of "Site Title & Tagline" is title_tagline, since you change the title and tagline in the "site identity" panel, I thought this is the way to go, but 'panel' => 'title_tagline'does not work. If you don't know it, where is a good place to ask for the ids of the WordPress core panels. There are no plugins or themes involved in this case.

Thanks for your guidance so far. I did take a look at Memory's wp-content/themes/memory/inc/customizer/customizer.php and noticed that

	$wp_customize->add_control(
		'site_description',
		array(
			'label'   => esc_html__( 'Site Description', 'memory' ),
			'section' => 'title_tagline',
			'type'    => 'checkbox',
		)
	);

is used to add a checkbox inside the Site Identity Panel below the 'title_tagline' inputs. So i guess i can't define this position inside the meta box custom fields definition?

Currently, my field is defined as follows:

$fields[] = [
    'title' => __('Copyright', NAME_SPACE),
    'id' => PREFIX . 'copyright',
    'panel' => '',
    'fields' => [
        [
            'name' => __('Copyright', NAME_SPACE),
            'id' => PREFIX . 'copyright',
            'type' => 'text',
            'label_description' => __('Text after copyright. Appears in the footer.', NAME_SPACE),
        ],
    ],
];