By default, the Axis property is "", that indicates that the default/first value axis is used. The chart can display multiple value axes. The serie uses the default value axis (unnamed value axis or the first value axis if all named) in case the specified value axis does not exit. The unrefered value axes shows the data as provided by the default value axis. The Start/End fields define where the value-axis begins/ends relative to the full axis. The ColorChart property defines the color to apply on the chart's background right to the value-axis.