PADS I/O Designer offers you advanced swapping capabilities, available in Signal List and Pin List context menus:
Swap > Swap Two Pins: Swaps two selected signals/pins.
Swap > Swap Entire Bus: Swaps two selected buses. The selected buses must have the same width.
Swap > Swap Entire Swap Group: If the selected pins/signals belong to two different swap groups, this command swaps all assignments for these two swap groups.
Swap > Swap Entire Bank: If the selected pins/signals belong to two different banks, this command swaps all assignments to pins from these two banks