This is a virtual Multimeter; use the multimeter in conjunction with the test module you are taking.
To establish a connection, you will need to connect the lead circles to the multimeter; you will need to use your mouse and, with the left-click button, drag the lead connections to the matching connections in the multimeter.
To connect with a point, you must place the very tip of the lead within that point.
To move the leads around, you must use the mouse right button by holding it and circularly moving your wrist. Remember to aim/rotate the leads in the direction you move the mouse.
The center dial of the multimeter must be clicked at the center of the dial. The dial will turn counter-clockwise. Remember to click thru until you reach the desired meter reading.
If you see a BOOM on the multimeter screen, you have blown a fuse inside the multimeter.