Custom fields in products

-- HikaShop version -- : 5.1.0
-- Joomla version -- : 4.4.6
-- PHP version -- : 8.3
-- Browser(s) name and version -- : chrome
-- Error-message(debug-mod must be tuned on) -- : have a display problem

Hello, I have a problem with the product display. Specifically, in the product sheet, I want to add custom fields under the product's price and quantity. When I go to the configuration View > Custom Fields, it only allows me to add fields for the address module, not for the products module. How can I do this? Thanks.

Perfect, i bought the essential version, and all is fine!