Tips on Customizing WPPizza – A Restaurant Plugin

How to Hide WPPizza Admin Menus

function plt_hide_wppizza_menus() {
	//Hide "WPPizza".
	remove_menu_page('edit.php?post_type=wppizza');
	//Hide "WPPizza → All Menu Items".
	remove_submenu_page('edit.php?post_type=wppizza', 'edit.php?post_type=wppizza');
	//Hide "WPPizza → Add New".
	remove_submenu_page('edit.php?post_type=wppizza', 'post-new.php?post_type=wppizza');
	//Hide "WPPizza → Categories".
	remove_submenu_page('edit.php?post_type=wppizza', 'edit-tags.php?taxonomy=wppizza_menu&post_type=wppizza');
	//Hide "WPPizza →  Settings".
	remove_submenu_page('edit.php?post_type=wppizza', 'settings');
	//Hide "WPPizza →  Order Settings".
	remove_submenu_page('edit.php?post_type=wppizza', 'order_settings');
	//Hide "WPPizza →  Order Form".
	remove_submenu_page('edit.php?post_type=wppizza', 'order_form');
	//Hide "WPPizza →  Opening Times".
	remove_submenu_page('edit.php?post_type=wppizza', 'openingtimes');
	//Hide "WPPizza →  Gateways".
	remove_submenu_page('edit.php?post_type=wppizza', 'gateways');
	//Hide "WPPizza →  Meal Sizes".
	remove_submenu_page('edit.php?post_type=wppizza', 'meal_sizes');
	//Hide "WPPizza →  Additives".
	remove_submenu_page('edit.php?post_type=wppizza', 'additives');
	//Hide "WPPizza →  Layout".
	remove_submenu_page('edit.php?post_type=wppizza', 'layout');
	//Hide "WPPizza →  Localization".
	remove_submenu_page('edit.php?post_type=wppizza', 'localization');
	//Hide "WPPizza →  Order History".
	remove_submenu_page('edit.php?post_type=wppizza', 'orderhistory');
	//Hide "WPPizza →  Templates".
	remove_submenu_page('edit.php?post_type=wppizza', 'templates');
	//Hide "WPPizza →  Reports".
	remove_submenu_page('edit.php?post_type=wppizza', 'reports');
	//Hide "WPPizza →  Customers".
	remove_submenu_page('edit.php?post_type=wppizza', 'customers');
	//Hide "WPPizza →  Access Rights".
	remove_submenu_page('edit.php?post_type=wppizza', 'access_rights');
	//Hide "WPPizza →  Tools".
	remove_submenu_page('edit.php?post_type=wppizza', 'tools');
}

add_action('admin_menu', 'plt_hide_wppizza_menus', 141);

Where do I put this code?

How to Hide the "WPPizza Options" Meta Box

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

	//Hide the "WPPizza Options" meta box.
	remove_meta_box('wppizza', $screen->id, 'normal');
}

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

How to Hide the "WPPizza Overview - updated hourly" Dashboard Widget

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

	//Remove the "WPPizza Overview  - updated hourly" widget.
	remove_meta_box('wppizza_dashboard_widget', 'dashboard', 'normal');
}

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