when I use the online center I often put a memo on the check (i.e. statement date, bill date etc) when I select the payee this memo would carry forward This is helpful for me to see I am paying the current bill
Rather than using the Online Center, you could review and accept your transactions in the Downloaded Transactions area at the bottom of the register.
When you select a transaction in that area, you will see in the register the transaction that is about to be entered. If the downloaded Payee matches an entry in your Memorized Payee List (MPL) and the "Lock" box is not checked for that MPL entry, you will see the Category, Memo, and amount that you used the last time.
Is that what you are looking for?