Tips on Customizing Super Page Cache for Cloudflare

How to Hide the "Super Page Cache for Cloudflare" Admin Menu

function plt_hide_wp_cloudflare_page_cache_menus() {
	//Hide the "Settings → Super Page Cache for Cloudflare" menu.
	remove_submenu_page('options-general.php', 'wp-cloudflare-super-page-cache-index');

add_action('admin_menu', 'plt_hide_wp_cloudflare_page_cache_menus', 11);

Where do I put this code?

How to Hide the "WordPress Guides/Tutorials" Dashboard Widget

function plt_hide_wp_cloudflare_page_cache_dashboard_widgets() {
	$screen = get_current_screen();
	if ( !$screen ) {

	//Remove the "WordPress Guides/Tutorials" widget.
	remove_meta_box('themeisle', 'dashboard', 'normal');

add_action('wp_dashboard_setup', 'plt_hide_wp_cloudflare_page_cache_dashboard_widgets', 20);