If you have not already done so, insert a chart by selecting it from the Insert menu, or double-click an existing chart to access the chart's configuration panel.
Click the Data tab.
If necessary, add the pen(s) to the chart. There are two ways to add pens (choose one):
Click the pen you want to configure.
Configure the pen's general properties:
On the Pen tab, if you want the pen to be visible, clear the Hide Pen check box.
In the High Limit and Low Limit boxes, enter the high and low limits, or select the Auto Limits check box to have the limits set according to the data source's highest and lowest values.
If you want high and low limits to be retrieved automatically at run-time, select the Fetch Limits check box.
NOTE: Not all data source types support the Fetch Limits option.
In the Decimal Places box, enter the number of decimals for pen values.
To show the pen's trend line, select the Show Line check box.
To display a constant horizontal line at the current value of the selected data source, select the Constant Line check box. To display a line based on the historical value of the data source, clear the Constant Line check box.
To show a blank space to represent an area in a plot where there is no data, select the Show Gaps check box. If this check box is cleared, blank spaces in the trend will be hidden.
To specify a sorting option for string data, select the String Data check box and select an option from the sort options list box.
NOTE: The String Data check box and sorting options are available only for string type data.
Configure the pen style options:
From the Line Style list box, select the style for the line.
To change the color of the line, click the Color button and select from the color palette.
To change the line width, enter a number from 1 to 9 in the Line Width box (9 is the widest line).
From the Marker Style list box, select the shape for the marker. If you want the marker to be filled, select the Fill check box.
Enter a number in the Marker Spacing box to indicate the spacing between markers. For example, if your marker spacing is set at one, there will be a marker for every data point in the trend.
To change the color that bad data displays as, click the Bad Data Color button and select a new color from the color palette.