I have just inherited a Phillips espresso machine and have no idea how to use it. I know where to put the water and the beans...and noticed that there's a knob that has G on one end and F on the other (which probably controls how fine the beans get ground), but there's 3 other switches with pictures of "power", "a cup" and the frother (I think that's what you call it, with another knob to control that too) on them. I can see where the ground coffee comes out from...and there's also a gadget that looks like it's supposed to fit where the water comes out...I'm so lost. Can someone help?