Board Thread:Fun and Games/@comment-31156671-20180129172519/@comment-33185350-20180129180554

You put the item into the first slot (on the left) in the GUI. Then make sure you have money in your inventory (not in pouches) and hover over the hammer icon. It will display the cost of reforging. Click the hammer. This will reforge it and there will be a brief (1-2 seconds) cooldown before you can reforge again.