Tips on Customizing Accordion FAQ Builder

How to Hide Accordion FAQ Builder Admin Menus

function plt_hide_accordion_faq_builder_menus() {
	//Hide the "Accordion FAQ Builder" menu.
	remove_menu_page('edit.php?post_type=accordion_faq');
	//Hide the "Accordion FAQ Builder → Accordion FAQs" menu.
	remove_submenu_page('edit.php?post_type=accordion_faq', 'edit.php?post_type=accordion_faq');
	//Hide the "Accordion FAQ Builder → Add New" menu.
	remove_submenu_page('edit.php?post_type=accordion_faq', 'post-new.php?post_type=accordion_faq');
}

add_action('admin_menu', 'plt_hide_accordion_faq_builder_menus', 15);

Where do I put this code?

How to Hide Accordion FAQ Builder Meta Boxes

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

	//Hide the "Shortcode" meta box.
	remove_meta_box('afb-shortcode', $screen->id, 'advanced');
	//Hide the "Add Accordion FAQ" meta box.
	remove_meta_box('afb-content', $screen->id, 'advanced');
}

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