X-Plot Channel 1 vs. Channel 0 in Signal Express

Hello All! This is probably obvious, but I have not been able to find it. I am trying to use signal express to record 2 differential analog imputs in a DAQ device (NIDaqMX). I have differential Channel 0 and differential Channel 1. I can record channel 0 vs. time and 1 vs. time, but I need to be able to generate a Channel 1 vs Channel 0 plot. Is there a way to do this in Signal Express?
Your help will be greatly appreciated.
Thanks in advance,
Diego J. Diaz

Hello Phil, Rob, All;
    Thanks for your replies. I will give a bit of background of what I am trying to accomplish. We have an old piece of electrochemical instrumentation (potentiostat) that used to collect data to an X-Y recorder. It sends an analog (up to) -10 to 10 V signal on an X channel and another one on an Y channel. We can use knobs in the instrument to "scale" the signal (or in LabView or Excel). Now, the X-Y recorder is gone to the old instrumentation heaven and I am trying to use and USB-6008 or USB-6009 (I have both) to collect data. X-axis is the voltage to which I assign channel #0 and the current is assigned to channel 1. Now, I can collect different "waveforms". It is usually a linear ramp (low-high-low) in cycles or steps (low to high to low asd a staircase instead of a ramp). I can collect either channel separately, but can't plot current vs potential (1 vs 0). I can do current vs time or potential vs time.
Thanks for all the help. Hope this bit of background can help in finding a solution.
Diego J. Diaz

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