Create a valid circuit by dragging & dropping an appropriate electrial components from the symbol palette (Electrical Components) on left pane of the page.
After this, connect all the components with each other through connector by dragging & dropping from the symbol palette.
Click "Check" button to check the validity of Connections.
If check connections says: Correct Connections move to the next step else if it says: wrong connections then recheck your ciruit until it validate the circuit.
After taking readings, click on the Graph button.
Take readings from the table by clicking Take Readings button.
Click Print button, to print the full connections with graph and table, if needed.
Click Reset button and follow the steps from 2 to 6.