You can now add an interactive discount table on the product page for customers to select the discount they want. This feature is only applicable to Volume Discounts only:
When customer select the discount they want and click on the customize Add to Cart button (example in this screenshot will be the Grab This Deal button), it will automatically adds the required quantity into the cart.
To use this feature, first go to the Design page:
After that, in Volume Discount > Product and proceed to select one of the Selector tables highlighted below (you can change the color and font size at the same page):