Conditional DATACOPY in calculation script

Summary

Would like to limit a DATACOPY argument to situations where a conditional statement results in TRUE.

Content

Hello,

I am looking to build a calculation script that includes a conditional DATACOPY.  I know that IF must be contained within a calculating member, but does anyone have a method to achieve something similar to the below?

 

IF (Sales > 100) then DATACOPY actual->final TO plan->working

 

Thank you!