Behaviour of ball python in feeding mode

[Craiga 01453]

I have heard to get them interested you can somehow make the room smell like their prey, they´ll be like ooh boy where is that food- Anyone tried this?

Yup, that's a trick to let them know there's food nearby. I let mine defrost in my kitchen since all my snakes are in one room. I don't want the whole crew thinking they're eating, especially if I plan to handle any that night (which is most night).
But then about an hour before feeding time I out the prey in the room and heat it in the room.