Tips on Customizing BA Book Everything

How to Hide BA Book Everything Admin Menus

function plt_hide_ba_book_everything_menus() {
	//Hide "BA Settings".
	remove_menu_page('babe-settings');
	//Hide "BA Settings → BA Settings".
	remove_submenu_page('babe-settings', 'babe-settings');
	//Hide "BA Settings → Addons".
	remove_submenu_page('babe-settings', 'babe-addons');
	//Hide "BA Settings → Demo content".
	remove_submenu_page('babe-settings', 'babe-demo-content');

	//Hide "BA Book Everything".
	remove_menu_page('edit.php?post_type=to_book');
	//Hide "BA Book Everything → All Booking Objects".
	remove_submenu_page('edit.php?post_type=to_book', 'edit.php?post_type=to_book');
	//Hide "BA Book Everything → Add New Booking Object".
	remove_submenu_page('edit.php?post_type=to_book', 'post-new.php?post_type=to_book');
	//Hide "BA Book Everything → Booking Categories".
	remove_submenu_page('edit.php?post_type=to_book', 'edit-tags.php?taxonomy=categories&post_type=to_book');
	//Hide "BA Book Everything → Taxonomies".
	remove_submenu_page('edit.php?post_type=to_book', 'edit-tags.php?taxonomy=taxonomies_list&post_type=to_book');
	//Hide "BA Book Everything → Ages".
	remove_submenu_page('edit.php?post_type=to_book', 'edit-tags.php?taxonomy=ages&post_type=to_book');
	//Hide "BA Book Everything → Booking rules".
	remove_submenu_page('edit.php?post_type=to_book', 'booking_rules');
	//Hide "BA Book Everything → Search Form".
	remove_submenu_page('edit.php?post_type=to_book', 'search_form');

	//Hide "FAQ".
	remove_menu_page('edit.php?post_type=faq');
	//Hide "FAQ → All FAQs".
	remove_submenu_page('edit.php?post_type=faq', 'edit.php?post_type=faq');
	//Hide "FAQ → Add New FAQ".
	remove_submenu_page('edit.php?post_type=faq', 'post-new.php?post_type=faq');

	//Hide "Services".
	remove_menu_page('edit.php?post_type=service');
	//Hide "Services → All Services".
	remove_submenu_page('edit.php?post_type=service', 'edit.php?post_type=service');
	//Hide "Services → Add New Service".
	remove_submenu_page('edit.php?post_type=service', 'post-new.php?post_type=service');

	//Hide "Orders".
	remove_menu_page('edit.php?post_type=order');
	//Hide "Orders → All Orders".
	remove_submenu_page('edit.php?post_type=order', 'edit.php?post_type=order');
	//Hide "Orders → Add New Order".
	remove_submenu_page('edit.php?post_type=order', 'post-new.php?post_type=order');

	//Hide "Fees".
	remove_menu_page('edit.php?post_type=fee');
	//Hide "Fees → All Fees".
	remove_submenu_page('edit.php?post_type=fee', 'edit.php?post_type=fee');
	//Hide "Fees → Add New Fee".
	remove_submenu_page('edit.php?post_type=fee', 'post-new.php?post_type=fee');
}

add_action('admin_menu', 'plt_hide_ba_book_everything_menus', 21);

Where do I put this code?

How to Hide BA Book Everything Meta Boxes

function plt_hide_ba_book_everything_metaboxes() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Hide the "Slideshow Images" meta box.
	remove_meta_box('booking_obj_metabox_side', $screen->id, 'side');
	//Hide the "" meta box.
	remove_meta_box('booking_obj_metabox', $screen->id, 'normal');
	//Hide the "" meta box.
	remove_meta_box('faq_metabox', $screen->id, 'normal');
	//Hide the "" meta box.
	remove_meta_box('fee_metabox', $screen->id, 'normal');
	//Hide the "" meta box.
	remove_meta_box('service_metabox', $screen->id, 'normal');
	//Hide the "" meta box.
	remove_meta_box('order_metabox', $screen->id, 'normal');
	//Hide the "Order items" meta box.
	remove_meta_box('order_items_metabox', $screen->id, 'normal');
	//Hide the "Customer contacts" meta box.
	remove_meta_box('order_customer_metabox', $screen->id, 'normal');
	//Hide the "Extra guest contacts" meta box.
	remove_meta_box('order_customer_extra_guests_metabox', $screen->id, 'normal');
	//Hide the "" meta box.
	remove_meta_box('mpoints_metabox', $screen->id, 'normal');
	//Hide the "" meta box.
	remove_meta_box('coupon_metabox', $screen->id, 'normal');
}

add_action('add_meta_boxes', 'plt_hide_ba_book_everything_metaboxes', 20);