Hi!

I've got a stock chart displaying the average value and a high-low-line
for each value displaying the min/max value. Furthermore I have the
number of values the from which the min/max/avg values are derieved
plotted on the secondary axis.

Now I want to add a horizontal line for the primary axis at a given
value.
My solutions so far aren't really satisfactory.
Solution 1: drawing a line
Drawback: when the scaling changes, the line has to be
moved.

Solution 2: adding a new series with 2 fixed values and making a
trendline out of it
Drawback: the high-low-values are messed up

Are there any other possibilities? I think the solution given for line
and column charts by Jon Peltier isn't applicable - or do I miss
something?

Thanks in advance for any suggestions,
Rene