Quantity selector as multiples of minimum quantity

[Marcelo4k]

Hello,
I'm on Prestashop 8.1.7, 'Warehouse' theme.
I would like to modify the product's page code to only select product quantities that are multiples of the product's minimum quantity. Any help would be really appreciated.

Regards,
Marcelo
 

Edited September 25 by Marcelo4k (see edit history)

[Marcelo4k]

Well, I was able to accomplish this buy adding

data-step="{$product.minimal_quantity}"

into product-add-to-cart.tpl 'qty' input, and disabling all other means of changing the units (cart side drawer and cart page).

The problem is that the multiplier factor doesn't change if a different combination is selected, the quantity input fields keeps the range according to the first combination loaded in the page.
This issue could be solved if I can trigger an update on the qty field same as the minimum quantity label gets updated when changing combination.
Any help appreciated.