When you first choose Preferences, then Chart in the trend chart menubar, the General tab of the Chart Preferences dialog opens.
Except for the disabled Chart Bins preferences, the General tab settings are the same as those for forecast and other charts.
You can set the following features, described in the sections in parentheses:
Chart title (Adding and Formatting Chart Titles)
Gridlines (Showing Grid Lines)
Legend (Showing the Chart Legend)
Chart effects (Setting Special Chart Effects)
For descriptions of each setting while you are viewing the dialog, click Help.