Introduction
Adding a Secondary Chart
Set Axis Scale
Axis Thickness/Show Axis
Set Axis Scale Using Primary Y-Axis
Swap Primary & Secondary Axis
Format Axis Color
Show 2D Arrowhead
Label and Ticker

Note: The Secondary Y-Axis is not supported in radar, pie, dial, bubble, and scatter charts.

Introduction
To set properties on the Axis grid, labels, range, intervals...etc, first create an IAxis object that has a handle on the chart's Axis that would be edited.  Then, the minimum, maximum, step intervals...etc can be set by using the setMinScale, setMaxScale, setScaleStep... etc.  Please refer to IAxis in the EspressChart API DOCS if additional information is desired.  Some API examples are provided below.

Add a Secondary Chart

// the data mapping for the secondary y values is included in the colInfo
// it is specified by the “subvalue” parameter
// ColInfo(int series, int category, int sumBy, int value, int subvalue)
ColInfo colInfo = new ColInfo(-1, 0, -1, 1, 2);

// create chart object
chart = new QbChart(this, QbChart.VIEW2D, QbChart.COL, data, colInfo, null);

// create an ISecondary object that has a handle on the Secondary Chart
ISecondaryChart hSecondaryChart = chart.gethSecondaryChart();

// set the secondary chart type, available options are COMBO_LINE
// COMBO_STACKAREA, COMBO_COL, COMBO_OVERLAY
hSecondaryChart.setCombinationType(QbChart.COMBO_LINE);

// create an IAxis object that has a handle on the Secondary Y-Axis
IAxis hSAxis = hSecondaryChart.gethAxis();

Axis Thickness/Show Axis
For information on Axis Thickness/Show Axis, please refer to Axis Thickness/Show Axis in 2D Axis API.

Set Axis Scale Using Primary Y-Axis

// OR, we can set the scale to be the same as the Primary Y-Axis
hSecondaryChart.setUsingPrimaryAxis(true);

// swap Y and Secondary Y-Axis
hSecondaryChart.setSwapAxis(true);

Show 2D Arrowhead
For information on Show 2D Arrowhead, please refer to Show 2D Arrowhead in 2D Axis API.

Label and Ticker
For information on Label and Ticker, please refer to Axis Label API.

Please refer to IAxis, IDataPointSet, DateTimeFormat, & IZoomInfo in EspressChart APIDocs for additional information.