I have three series that I am plotting against categories.
They are a base value and a delta, and a marker series.
By stacking them and hiding the base I get a floating bar showing the size
of the delta for each category. By showing the marker series as a linechart
with markers only I get a symbol showing where this value fits in the range.

Ideally I would like a bar chart, categories on the vertical axis, and
values from 0 to 100% on the horizontal axis, with very narrow bars -
thinner than what I can get with 500% gapwidth.

To get that I am plotting to give a floating column chart and pasting that
sideways to Powerpoint. Convoluted, yes, but AFAIK I need to use a stacked
column chart to get floating bars with one series as markers.

At the moment it gives me fairly thick lines for the bars by setting
..gapwidth to 500%. Is there a better way?

Thanks!
Patrick