Install on ShopifyBundles: shoppers pick a variant for each item
Volume bundles can now show a dropdown per unit, so a customer buying a 3-pack chooses the color or size of each item. Your tier discount still applies across whatever mix they pick.
Per-item variant picker lets your customers choose a variant for each unit of a volume bundle. When a shopper selects a multi-pack (say, Buy 3), they get a clean dropdown for each item so they can pick a different color, size, or flavor per unit. It is the "buy 3, pick your colors" experience shoppers already expect from the big brands.
Turn it on per bundle from the bundle editor: open Advanced, then switch on Let Customers Pick Each Variant. The dropdowns only appear for products that actually have variants, and sold-out options show up greyed and cannot be selected, so the picker never promises something you cannot ship. On the storefront each dropdown uses a clean, consistent chevron that looks the same in every browser.
Your "buy more, save more" pricing keeps working exactly as before. Whatever mix of variants a shopper picks, the tier discount still applies across the whole pack, so a 3-pack of three different colors is still discounted as a 3-pack.