The first thing you want to to is alter the setting for the sub options page
// sub options page for header of the page
acf_add_options_sub_page(
array(
'page_title' => 'Header tools',
'menu_title' => 'Header',
'parent_slug' => 'theme-settings',
'menu_slug' => 'header-tools'
)
);
The location rule is the menu slug. Or you could go into ACF and click on add field group and then examine the select field to find out what the current value that’s being used is.
