Create a custom menu page to add new site

Create a custom menu page to add new site under Your Account parent link on subsite.

I have given the following untested code. But this did not worked quite well. Need to further test it on member's site.

??add_action( 'admin_menu', 'wpmudev_register_custom_menu_link' );
/**
* <a title=<a title=author href=/profile/author>author</a> href=/profile/author>author</a> Brad Dalton
* <a title=<a title=example href=/profile/example>example</a> href=/profile/example>example</a> http://wpsites.net/wordpress-admin/add-top-level-custom-admin-menu-link-in-dashboard-to-any-url/
* @copyright 2014 WP Sites
*/
function wpmudev_register_custom_menu_link(){
add_submenu_page( 'psts-checkout', 'Add New Site', 'Add New Site', 'manage_options', 'add-new-site-link', 'wpmudev_custom_menu_link' );
}

function wpmudev_custom_menu_link(){
wp_redirect( 'http://mynetwork.com/prosite-plus/?action=new_blog', 301 );
exit;
}

It should be like this:

and this: