Create a standard earnings element to pay by unit instead of by hours worked

Summary

We have a requirement to for multiple earnings elements which are based on units completed rather than hours worked. I cannot get a Units x Rate calculation rule.

Content

We have a requirement to for multiple earnings elements which are based on units completed rather than hours worked.  I cannot get a Units x Rate calculation rule.  The original setups were completed by our consultants and set up the earnings elements as supplemental rather than standard which is causing issues with some of our reports.  I cannot figure out how the elements were setup to duplicate the input values using units rather than hours.