“I performed some extensive write ups/downs on a huge Client-Matter.  The Responsible Attorney has just told me to hold the invoice and he wants to review it in its original state next month.  Do I have to individually edit each transaction to get it back to its original state?”

No – you do not have to edit each individual transaction.  To revert all transactions back to their original values (prior to any write ups/downs), call up the Client-Matter in Bill Preparation and click ACTION, Reset All to Original.  This will reset all transactions back to their original values (Hours and Amount) – even if you had already saved the write ups/downs.  This feature will not reset changes to Dates, Timekeeper IDs or the Rate Code.