Re: Just dumping the stuff in a cart wouldn't be a terrible option.
Down in the trenches, there is a book with barcodes at the end of the storage unit, and the shelves are also labelled with barcodes, so, when something is about empty one person goes through the storage shelves and goes "Zap, Zap, and Zap" with the barcode scanner on it. It takes maybe 20 minutes for a minion to build an order and get it from our suppliers rather than Bezo's. .
Pressing a button for each item is ludicrous.