This setting determines the minimum step size for the Secondary X-Axis. Enter a numerical value and the visual will use it as an interval between each tick on the Secondary X-Axis scale. Example – If the X-Axis ends at 1000, then:

• Setting 100 as the step size will place the ticks on 0, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000.
• Setting 200 as the step size will place the ticks on 0, 200, 400, 600, 800, 1000.
• Setting 500 as the step size will place the ticks on 0, 500, 1000.

If you leave this field blank, the visual will automatically choose the step size. 

This setting can also be used to avoid fractions on the label values – set 1 as the step size.