In the planning template, you have defined a row of object type "Stat. key fig." with the object "Employee". For the quantity you go to the quantity editor and define a formula. You use the Own Statistical Key Figure function in the editor and choose, for example, the statistical key figure "Salaried Employee". In this case, the SAP R/3 System writes the planned quantity of the statistical key figure "Salaried Employee" in the statistical key figure "Employees".