Whenever you record a transaction, Quicken "remembers" it and puts it on the Memorized Transaction List. The QuickFill feature remembers how much you paid or deposited. The next time you record a transaction that involves the same person or party, Quickfill enters that amount in the Payment or Deposit box.

Suppose, however, that you want QuickFill to put in a default amount in the Payment or Deposit box. That default amount is different from the last entry and will remain the same from here on out. You can do that by "locking" the transaction on the Memorized Transaction List.

To lock a transaction, open the Memorized Transaction List by choosing Banking, Memorized Transaction List (or pressing Ctrl + T). Click the transaction you want to lock, and either click the Lock icon in the lower-right corner of the window or click in the Lck column. Transactions that have been locked show a picture of a padlock in the Lck column. To "unlock" a transaction on the list, click its lock icon to remove it.