Add control chart as a chart type. Preferably with the ability to set 'alerts'ing based on various factors such as exceeding the upper limit or 5 positives in a row (even though still within limit).
I agree this would be useful. User should be able to choose between methods of calculating control limits including by mean (average), median and for those who use is Standard Deviation. I have been trying to figure out how to do this through alternate means and running into a wall. What I would not want is a control chart option where you cannot tell how it is calculating the control limits, and no one seems to know which approach is being used.
