State payroll tax report - back date include employee

Hi,

I have realised that some employees had state payroll tax unchecked. I have now ticked that they are included in employee details, but the report still doesn't include their amounts from before now. (I did refresh the report.) I discovered that if I unlock a payslip and then save it again it then includes those amounts. I am really really hoping someone can tell me a better way than opening, unlocking and re-saving all the previous payslips to have their amounts included from before I ticked the box.