Hello Dilges Yildiz,
Thank you for contacting us and for using XStore.
Do you mean this https://prnt.sc/_yWBU0zSeoGf ? Header builder > Cart > Show Linked Products (Off-Canvas) > On, and read more about Up-Sells – https://woocommerce.com/document/related-products-up-sells-and-cross-sells/
We hope this information is helpful.
Kind Regards,
8theme team