Hello, Dilges Yildiz,
Thank you for your reply.
This is https://www.hizliresim.com/qei16jp “Safe & Secure checkout” block, it comes from – XStore > Sales Booster – https://prnt.sc/iWSDHpQBRPYC Its content is the same for all products, there is no option to make it different for separate products, unfortunately.
“Additional custom block” you selected https://prnt.sc/jsF2u5lXoZUp , should be added into single product page content via Single Product Builder, for example – https://gyazo.com/c201408fe3ca390e1f0724b978ce452f It will be visible only on products where it is selected – https://prnt.sc/HJ9g9RnVf8V3
We hope this information is helpful.
Kind Regards,
8theme team