Hi Dave, Thank you for your reply! In one chart, the software can display the selected traces. The problem is I need a "stack plots" like user interface and hope the number of plot areas can change alonge with the number of input signal during running time. I believe Jcrooke's method of using picture control is a solution for it. Because it needs a lot of work, I didn't try it. It seems that you have simple method to handle this. Can you tell me?
Best regards, George
