how to create group custom field on product detail

-- HikaShop version -- : 4.2.3
-- Joomla version -- : 3.9.16
-- PHP version -- : 7.3
-- Browser(s) name and version -- : firefox last version

hello, how are you
please see the attached file and help me to create a custom field head text on custom fields
for example :
custom head text 1: {Memory}
==> custom field 1 : Internal Storage
==> custom field 2 : Card slot type
==> custom field 3 : RAM
custom head text 2: Display
==> custom field 4 : Screen Colors
==> custom field 5 : Touch Screen
==> custom field 6 : Screen Type
==> custom field 7 : Screen Size
and etc
thanks