How to use the PtTrend widget?

Dear everyone:
I want to use PtTrend widget to display the data which are collected by PCI card, but I don’t know how to use the PtTrend, could you hely me?
for this question, I had studied the help document for one day, but find nothing. pleade help me,OK?
thanks!I look forward your answer all the time!

Maybe this will help:

openqnx.com/PNphpBB2-viewtopic-t2646-.html