RainLab\Pages\Classes\Page::listLayoutSyntaxFields PHP Method

    public function listLayoutSyntaxFields()
    {
        if (!($layout = $this->getLayoutObject())) {
            return [];
        }
        $syntax = SyntaxParser::parse($layout->markup, ['tagPrefix' => 'page:']);
        $result = $syntax->toEditor();
        return $result;
    }