Allows you to move a stockpile item from one stockpile to another. For instance, you can move an item from the Stockpile into the stockpile for your active drawing if you know the item belongs in that drawing but are not yet ready to place the item. Similarly you can move an item in the Drawing Stockpile to the Stockpile so that it can be used in other drawings. You can even move items from one drawing stockpile to another. The Move to Different Stockpile dialog opens.