I have the Contractors Edition and I am entering historical data for last year. (Don't laugh cause I know you all wish you were doing that

). Anyway, I need help with bill paying.
I know how to pay a bill using a check, but I can't figure out how to process a payment when the bill was paid electronically. I pay all my AMEX bills, and others, online directly from my checking account. My only option under Payment Options seems to be checks or Credit cards, and this payment type is neither. I tried to add a payment method but it won't show up in the drop down box.
I checked the 'help' section, nothing. How do I pay a bill when I paid it electronically? I will hang up now and listen to the answer from those more experienced than me.