public static function options_page( $sub_pages = [] ) {
		if ( function_exists( 'acf_add_options_page' ) ) {
			acf_add_options_page( [
				'page_title' => 'Options',
				'menu_title' => 'Options',
				'menu_slug' => self::OPTIONS_PAGE,
				'capability' => 'edit_posts',
				'redirect' => false,
				'position' => 4,
			] );

			foreach ( $sub_pages as $sub_page ) {
				switch ( $sub_page ) {
					case self::GENERAL_PAGE:
						acf_add_options_sub_page( [
							'page_title' 	=> 'General Options',
							'menu_title' 	=> 'General',
							'parent_slug' 	=> self::OPTIONS_PAGE,
							'menu_slug' => self::GENERAL_PAGE,
						] );
						break;

					default:
						continue;
				}
			}
		}
	}