Tips on Customizing Ultimate Reviews

How to Hide Ultimate Reviews Admin Menus

function plt_hide_ultimate_reviews_menus() {
	//Hide "Reviews".
	remove_menu_page('edit.php?post_type=urp_review');
	//Hide "Reviews → Dashboard".
	remove_submenu_page('edit.php?post_type=urp_review', 'ewd-urp-dashboard');
	//Hide "Reviews → All Reviews".
	remove_submenu_page('edit.php?post_type=urp_review', 'edit.php?post_type=urp_review');
	//Hide "Reviews → Add New".
	remove_submenu_page('edit.php?post_type=urp_review', 'post-new.php?post_type=urp_review');
	//Hide "Reviews → Review Categories".
	remove_submenu_page('edit.php?post_type=urp_review', 'edit-tags.php?taxonomy=urp-review-category&post_type=urp_review');
	//Hide "Reviews → Export".
	remove_submenu_page('edit.php?post_type=urp_review', 'ewd-urp-export');
	//Hide "Reviews → Import".
	remove_submenu_page('edit.php?post_type=urp_review', 'ewd-urp-import');
	//Hide "Reviews → About Us".
	remove_submenu_page('edit.php?post_type=urp_review', 'ewd-urp-about-us');
	//Hide "Reviews → Settings".
	remove_submenu_page('edit.php?post_type=urp_review', 'ewd-urp-settings');
}

add_action('admin_menu', 'plt_hide_ultimate_reviews_menus', 100);

Where do I put this code?

How to Hide Ultimate Reviews Meta Boxes

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

	//Hide the "Review Details" meta box.
	remove_meta_box('review_meta', $screen->id, 'normal');
	//Hide the "Need Help?" meta box.
	remove_meta_box('ewd_urp_meta_need_help', $screen->id, 'side');
}

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