Tips on Customizing WP Review

How to Hide the "WP Review" Admin Menu

function plt_hide_wp_review_menus() {
	//Hide the "Settings → WP Review" menu.
	remove_submenu_page('options-general.php', 'wp-review/admin/options.php');
}

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

Where do I put this code?

How to Hide WP Review Meta Boxes

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

	//Hide the "Review" meta box.
	remove_meta_box('wp-review-metabox-review', $screen->id, 'normal');
	//Hide the "Review Item" meta box.
	remove_meta_box('wp-review-metabox-item', $screen->id, 'normal');
	//Hide the "Review Links" meta box.
	remove_meta_box('wp-review-metabox-reviewLinks', $screen->id, 'normal');
	//Hide the "Review Description" meta box.
	remove_meta_box('wp-review-metabox-desc', $screen->id, 'normal');
	//Hide the "User Reviews" meta box.
	remove_meta_box('wp-review-metabox-userReview', $screen->id, 'normal');
}

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