How to see woocommerce products in quantities as well as cases?


I want to add 2 Buy Case options in the product page something like this link.

So for a single product there will be 3 options

1/ General WC option to buy any number of products.

2/ New button – Buy case of 12

3/ New button – Buy case of 24

Can you please tell me is there any plugin to achieve this like the reference website?