Hello, I am setting up an ACF Pro Options page for the first time and have a question.
My Options pages have this hierarchy:
Edit Content (parent)
– Header (child)
– Footer (child)
In the WP Admin Menu, the menu item for these options is called ‘Edit Content’. When you hover over the ‘Edit Content’ menu item, you see a dropdown with three pages: Edit Content, Header, and Footer.
How do I hide the ‘Edit Content’ parent page, so that only ‘Header’ and ‘Footer’ show up when you hover over the ‘Edit Content’ item in the main menu sidebar?

Here’s the code I’m using:
if( function_exists('acf_add_options_page') ) {
acf_add_options_page(array(
'page_title' => 'Content Settings',
'menu_title' => 'Edit Content',
'menu_slug' => 'content-settings',
'capability' => 'edit_posts',
'redirect' => false,
'icon_url' => 'dashicons-edit',
));
acf_add_options_sub_page(array(
'page_title' => 'Theme Header Settings',
'menu_title' => 'Header',
'parent_slug' => 'content-settings',
));
acf_add_options_sub_page(array(
'page_title' => 'Theme Footer Settings',
'menu_title' => 'Footer',
'parent_slug' => 'content-settings',
));
}