Product Option display

-- url of the page with the problem -- : local site
-- HikaShop version -- : 3.2.1
-- Joomla version -- : 3.8.2
-- PHP version -- : 7.0.13
-- Browser(s) name and version -- : Firefox Developper latest

HI,

I have to build a complex shop with a lot of products and options with prices based on both options and quantity ordered and specific option code.

The easiest way I found not to have undred choice of characteristics combinated in each product is to set as characteristics specifications that dont change procuct price and to set as options specifications that change product price.

So basically I have 1 product with 3 characteristics that wont change the price and 2 options with 3 possible caracteristics inside each option that will change product price.

ie: Product 1
- caracteristic 1 yes or no --> doesnt affect price
- caracteristic 2 yes or no --> doesnt affect price
- caracteristic 3 yes or no --> doesnt affect price
- option 1 blue or red or green --> affect price combinated with quantity ordered (meaning the unitary option price for red/500 is different from red/200)
- option 2 blond or brown or bold --> affect price combinated with quantity ordered

My first problem with tis system is that I want to display all caracteristic and options as radio button. It's ok for caracteristics but I see no way in hikashop configuration to do it for options. What can I do ?

My second problem is that price on product page doesnt change whatever quantity is selected and options always show at price zero. However the calculation does work seens the price is correct on cart.
Is there a way to display correct price AFTER selecting quantity and BEFORE the client click the "add to cart button" ?

Last problem is that the global configuration option for page product display (default, tab or inversed) doesnt have any effect on my display, and I have not made any css customisation yet. I also noticed that the "téléchargement" label disapear when there are no files assigned to caracteristics (the file are still visibles, and that's good, only the label disapear, and that's not good)

- for point 3, I have provided link to the page (in confidential mode), it's the only product in shop atm. the "Label" problem doesnt happen on page load, it happens as soon as any caracteristic is checked by customer, you'll see the word "telechargement" disapearing from the page.
For the tab display problem however it's ok, I forgot the product configuration.

- for point 1, is it a big customisation or something rather simple?

3- please check it yourself, I have provided all info you need for frontend and backend access. I haven't customised anything yet in css and there is no hikashop customisation in my template either. This does look like a bug.
I bought business edition.

thanks,

but the website you modified is just a demo for you, I need to apply the same fix in my real website (local), can you provide the modified file(s) ?