VendorMaxStack

VendorMaxStack adds a small ×N button to Blizzard's merchant window

Click once to buy a full stack of food, drinks, reagents or other stackable items paid for with gold, silver or copper. A ×20 button buys 20 items, including when the merchant sells bundles of five.

Hover to see the total price. The button is disabled when you lack money, stock, bag space or an applicable item allowance. It never substitutes a smaller purchase. Unique category limits use the standard merchant purchase.

No configuration or dependencies. All WoW client languages are included, with automatic language selection and English fallback. Tokens, special currencies and replacement merchant interfaces are outside this version's support.