AdRules allows you to adjust the chart type: line or column. Line graphs can be used to compare changes over the same period of time for more than one metric. Bar graphs are used to compare things between different metrics or to track changes over time.
Under “Chart Options” you can adjust the vertical axis minimum and maximum units, which allows you to adjust the Y axis and analyze specific segments or ranges of data. When selecting a second metric to analyze (ie, “Spend” and “CPA”), the option to adjust the secondary vertical axis minimum and maximum figures is available.