Can I search for custom fields with the filter?

-- url of the page with the problem -- : chem.revolte.hu/
-- HikaShop version -- : HikaShop Starter 4.7.2 [2304191802]
-- Joomla version -- : Joomla! 4.2.8 Stable [ Uaminifu ] 16-February-2023 15:00 GMT
-- PHP version -- : 7.4.33
-- Browser(s) name and version -- : Google Chrome

We want to buy the enterprise version because it contains the filter function! My question is, can we create custom fields and search based on them and it can be set to search for text input. For example, enter a unique article number in the search filter.