split channel data display on a xy graph with their own area

[zmarcoz]

I have n channels data & need to display on a graph
However, I don't want them to dispaly on the same area because they will cover each other and not easy to see the difference. I want to display like one channel on one xy graph. However, there are "n" channels & everytime the number of channel will change. Could you please teach me what should I do?

[mbolding]

If you are displaying data channels vs. time then you could use a Waveform Chart. Right click on the chart and select "stack plots" (as opposed to "overlay plots") for the behavior you desire. In labview "xy graph" has a specific meaning. It implies a display of x,y pairs, such that there may be multiple y values for each x value. I suspect, perhaps erroneously, that this is not what you need.
If you truly need stacked xy plots then you can add offsets to the y values of each channel, add duplicate scales for each channel, or place several xy graphs on the fornt panel and disable or hide the ones you do not need.