Changing Entry date for mass population (PA41)

HI all,

We loaded mini master as of July 1st 2007. Now we are going LIVE for payroll(US) on August 1st. Initially decision was that we will only issue partial W2 but now the decision has come that we have to load YTD because we will be issuing the W2 and also 3rd Quarter reporting.

In order to load YTD for Q1 & Q2, we have to change the entry date for employee. I know that we can do it by PA41, but Is there any way we can do it for whole population instead of one by one?

Is there any program that can be used to change the entry date for mass population or what should be the best strategy?