Limit promo pricing to specific quantity bundles

We would like the ability to limit a promotional price to a specific quantity, such as applying a discounted price only to every set of 2 pairs in a cart. Currently, when a customer adds a third item, the promo price incorrectly applies to it as well. The merchant wants the discount to apply strictly to complete qualifying bundles (e.g., 2 pairs), and for any additional items outside those bundles to return to their original price unless they form another full set.

This feature would help merchants run cleaner, controlled promotions that prevent unintended over-discounting while encouraging customers to purchase in specific quantities to receive the deal. It would support structured promo campaigns while protecting margins.

If you would find this feature useful for your promotions, feel free to upvote to help prioritize its development!