Got a coffee drip/espresso/cappucino machine from someone who had got a new machine. They had lost the manual and forgot how to use it. I can use the drip part perfectly, but what about espresso and cappucino? There is a round metal box at the top of the machine with small holes in bottom, looks like its meant for coffee,but where do I place it? To the left for the metall box is a can for water. The coffee machine makes a lot of noice using it and very long time.