Joining top of graphs with a line
simple really ... i have a bar chart and i want a line which joins the top of all the bars.
I click on the chart but i cannot figure out how to do this simple task. The Line icon in Chart Layout-Format is not highlighted. Double click chart does not reveal any options to join lines.
simple - but cannot do.

What you are looking for is called a “series lines”. These are only supported on stacked column and bar charts. To turn on the “series lines”, use the following steps.
1) click on the chart
2) In the Design tab of the Chart tools, click on “Add Chart Element”
3) Select “Lines” > “Series Lines”
Thanks,
Scott [MSFT[