Hi,
As you know, there is no such option in HikaShop.
First I thought that it would be possible to create this feature using a custom plugin and a "cart trigger"
www.hikashop.com/support/documentation/6...umentation.html#cart
But the fact is that, you can have this trigger in a lot of different parts in the HikaShop store. In every page where you can add a product to the cart or simply edit the cart (so where the "cart module" will be displayed).
So I guess that the best solution for the moment is to add it directly in HikaShop or, if possible, in a view.
Like that I can't say if it will be easy to do it with a view override. The fastest solution will be to change some code in the HikaShop core but you will loose your modification with updates.
It is planned to make sort of refactoring for the "add to cart" system in order to have more options and more flexibility. but for the moment we don't have put it in the schedule. It's still in the TODO list.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.