Adding Options on nth product

-- url of the page with the problem -- : www.twh.com.au/hunterbiltong/
-- HikaShop version -- : 2.4.0
-- Joomla version -- : 3.4.1
-- PHP version -- : 5.4.40

Hi

Our client was wondering whether we could add an option to a product based on the quantity bought.

For example, they want to sell meat in 500g quantities, and want to give them the option of purchasing an packaging eski for every 2kg purchased.
I know we can set it so a product can have an option for every product bought, but not sure if we can set it for x amounts of products.

Thanks

Hello,
There is actually no option to do that, the only way will be to sell your product per 2kg and add your option or to directly customize Hikashop's code.