1041 Form - in the software, where do I enter tax withheld (block 4) from a 1099-R (IRA distribution)?

I am using TT Business for an estate 1041.  The estate had an IRA distribution and received a 1099-R.  I see where to enter the amount in the softwar, but I do not see where to enter the 1099-R, block 4 information (taxes withheld.