Tips on Customizing Pro Author Review

How to Hide Pro Author Review Admin Menus

function plt_hide_pro_author_review_menus() {
	//Hide "Reviews".
	remove_menu_page('edit.php?post_type=parreview');
	//Hide "Reviews → All reviews".
	remove_submenu_page('edit.php?post_type=parreview', 'edit.php?post_type=parreview');
	//Hide "Reviews → Add new review".
	remove_submenu_page('edit.php?post_type=parreview', 'post-new.php?post_type=parreview');
	//Hide "Reviews → Settings".
	remove_submenu_page('edit.php?post_type=parreview', 'pro-author-review');
}

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

Where do I put this code?

How to Hide the "Review options" Meta Box

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

	//Hide the "Review options" meta box.
	remove_meta_box('pro_author_review_meta', $screen->id, 'normal');
}

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