attach 1 serial per item when adding new product

-- HikaShop version -- : 3.4.0
-- HikaSerial version -- : 2.1.1
-- Joomla version -- : 3.8.7
-- PHP version -- : 7.1

I d like to know Jerome if I could assign also 1 serial per product when I add a new product with a quantity of 5 for example.
So each item can have its own serial, when I create a new product. When I buy 5 iphone 6s for example, each item in the invoice has already its serial. So it would be greate if I could import the manufacturer serial . Is this possible?

Ι mean when adding a new product.

Yes Jerome.
I mean when I add a product as a new product. It wasn t on my website and now I add it. And the invoice from the seller (who sold me this 5 iphones) has the serials also on it.
So my question is , if I can add these serial numbers to each one of the iphones. So when I sell them I d know which exact iphone I sold and when I bought it.
Think that I bought another 5 iphones after 4 months . Its the only way to know which iphone the client bought and what was the date I bought it.
So can hikaserial work on adding a new product or only on selling.
I thought that I could assign a pack on the product (iphone), with 5 serials (copied from the invoice) but this would be random, Since every time I d have to search wich serial I sell.