These two dates control the rows that are selected for all processes run from this window (View Gifts, Edit Gift Group, Book Gift Group, Print Letters, Print Receipts, Print Edit of Receipts, and Copy Gift Group).
The dates in the From and To columns default to the beginning and ending fiscal year dates as configured in the Fiscal Yr Beginning and Fiscal Yr Ending columns on the Master Config tab of the Development Configuration window. These columns are editable, and any date can be entered.