Configure reference lines to display the first and last slices of the series and the reference lines of other linked series.
To set preferences for reference lines
From the Image area top or context toolbar, right-click Link Series.
To enable the reference lines, select the Show Reference Lines checkbox.
To disable reference lines, clear the Show Reference Lines checkbox.
When disabled, the sub-options are not available.
To display reference lines representing the first and last slice of the active series, select the Include lines for first and last slices checkbox.
By default, this option is not selected.
To display reference lines from the linked series, select the Include lines for linked series checkbox.
By default, this option is selected.