Hi gongchanyuan,

Thanks for reaching to us.

Please read below documentation articles for more details:

https://xtemos.com/docs-topic/widgets-and-sidebars/
https://xtemos.com/docs-topic/product-page-options/
https://xtemos.com/docs-topic/how-to-add-filters-are-in-custom-shop-page/

Regards,