The ability to show more than one measure on both axes of a dual axis chart is not currently built into the product.
As a possible workaround, use the Tableau pivot function to convert several measures into one measure and add this measure in the view with dual-axis.
Please note that this workaround has some restrictions:
1. Pivot can't be applied to the calculation fields.
2. Other measures after pivoting, need to be revised. (e.g. divided by the number of measures that are used in pivoting)
There is an sample Tableau packaged workbook in the Attachments section demonstrating the workaround.
To voice your support for the inclusion of this feature in a future product release, add your vote to the following Community Idea: Multiple Instances of Measure Names/Values Variable
001473860
1244 KB