Is is possible to create a trend zone that begins at the chart bottom and ends at a specified y position? I am using setAdaptiveYMin, so I do not know ahead of time what my yAxisMinValue is.
I have tried:
<line startValue='$chartStartY' endValue='5<%=prevy%>' color='FF0000' alpha='5' isTrendZone='1'>
It appears that $chartStartY can only be used in style macros?