Split custom fields in 2 blocks

-- HikaShop version -- : 3.3.6
-- Joomla version -- : 3.3.6
-- PHP version -- : 5.4.36
-- Browser(s) name and version -- : na

Hello,

I have created a list of custom fiels that needs to be shown on the product page.
Per default there is 1 block and i need those to split in 2 sections with both there own custom fields.

How can i establish this.
The blue section must be 1 block and also the green section must be 1 block.