You can place as many traces as you would like on a graph. Adding addition traces can be done using the graphs properties box. In the property box, simply select the Trace sheet, and press the Add button below the list of traces. A new trace with a Y expression of New Trace will be created. Replace the New Trace with your desired expression and set any other parameters.
Once you have multiple traces, you can edit the parameters of a particular trace by simply clicking on the trace's Y expression as listed in the trace list of the properties box. When you click on it, all the fields in the rest of the box will be reset to display the parameters for the selected trace. If you change the Y expression of the trace, it will be updated automatically in the trace list. Be careful not to create two traces with the exact same Y expression. If you do so, you may have a difficult time selecting both traces. If you must have two identical traces, we suggest enclosing one of them in parenthesis or something similar. This will allow the trace list to distinguish between the two traces without changing the result of the Expression.
