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 and access the Tool Tips tab.
Foreground Color (Tool Tip text color) - select the Use Pen Color check box to set the text color to be the same as the pen color, or clear this check box and click the Foreground button to select a color from the color palette.
Background Color - select the Use Chart Color check box to set the background color to be the same as the chart background color, or clear this check box and click the Background button to select a color from the color palette.
Border Color - select the Use Pen Color check box to set the Tool Tip border color to be the same as the pen color, or clear this check box and click the Border Color to select a color from the color palette.
If you want to show the y value in Tool Tips, select the Show Y Value in Tool Tips check box.
For the y value, in the Decimal Places box, enter the number of decimal places to show in the Tool Tip.
If you want to show the date in Tool Tips, select the Show Date check box.
From the Date Format list box, select a format for the date.
If you want to show the time in Tool Tips, select the Show Time check box.
From the Time Format list box, select a format for the time.
