"how can I make the area I drew in the picture in websitex5 pro version?I would be glad if you can help"

Hello Mehmet

By default you cannot I am sorry. Your example appears to be database driven, WX5 is not.

Without special code this selection menu as displayed is not possible. In the Shopping Cart: Search you are limited to one category and no sub categories so that will not meet your requirements either.

To design a similar site you would need to design a page for every model, in every brand, in every category. In the example shown this would be quite a task but if you did so you could use a simple menu to display levels, sub levels and pages.