When I step a parameter, how can I see which waveform goes with which step?
After a stepping operation, multiple waveforms will be available on the screen. To view which waveform belongs to which step, you need to invoke Cursor mode. This can be done by choosing Cursor, under the Mode selection of the Options menu or by pressing the F8 hotkey. The title of the plot will appear with the stepped parameter value of the waveform that the cursor is currently on. The title, when only stepping one parameter, will look similar to this:
PRLC.CIR Temperature=27 R1.Value=50
where the cursor is currently on the waveform produced when R1 was 50 ohms. To shift the cursor to the other steps, press the Up or Down Arrow cursor key.