Datacopy based on Prompt value

Good day, need to create a Calculation Manager rule that will copy a record based on a prompt. Need to copy an employee from one entity to another for either the current year, or for the next three years.

We are currently using FIX and DATACOPY copy the necessary data, but I'm unable to only do it for all the ranges. I've created a version where there is a start year and End Year for the fix statement, but the default values are the same for both variables.

FIX ( {YearStart}:{YearTill} )

DATACOPY {Employee_From} to {Employee_To};

ENDFIX