Ability to add custom drop-down options on Check# column

RD of EP

Direct online payments and bank BillPay is now offered by a lot of billers. It would be nice if I can customize the drop-down list on Check# columns so I can add EFT (Electronic Funds Transfer) or BillPay (if I paid through my bank's BillPay service) without having to type it each time I enter a new transaction.

Quicken for Windows has this option and it's very convenient.