Did you see how they work on construction sites huge tower cranes, we invite you to sit at the controls of the crane and a large dokernogo immerse containers on the ship. A need pinpoint accuracy to the goods to be there, where it is intended and no millimeter left or right. Capture hook and drag the boxes where you want. Be patient, the containers will behave disgracefully, flip, shift, and be hindered. Proceed with the mouse.