It would be unique and important to be able to control the variations inventory based on warehouse inventory. If there is one product that comes for example in bags of 1000pcs and you have a listing with variations were a customer can buy x1, x10, x100, x1000 then the inventory stock should be based on real warehouse stock, meaning that if a customer buys 1 time on the x10 variant then the warehouse stock of the x1 will be 990, the stock of x10 will be 99, the stock of x100 will be 9 and the stock of x1000 will be out of stock.