You can add series lines to connect data series in 2-D stacked bar and column charts. Drop lines are available in 2-D and 3-D area and line charts. High-low lines and up-down bars are available in 2-D line charts. Stock charts already have high-low lines and up-down bars.
To add these lines and bars to all data series of the same chart type, select only a single data series.
For Help on an option, click the question mark and then click the option.