Plot more than one analog value to a waveform chart by reading from Serial Port

[vasosc]

I have 4 LDRs and I want to plot their values to a waveform chart by reading them from the serial port. I have looked around and found an example of a VI plotting one value to a waveform chart (attached below) but I am unsure about how to expand this for 4 different waveforms, mostly because I don't particularly understand the way is being read currently. If someone could either point me in the way of a relevant example or explain/show me a solution, or explain howthe current VI I have works, that would be greatly appreciated.

[crossrulz]

Since I assume each LDR (whatever that is) has its own serial connection, you will need to read from 4 different serial ports.  From there, just form an array of all the data and write to the chart.