Of course you can.
You have to modify your layout to add what you want display.
You can put to do what you want a :
Dyn Custom1 object, Dyn Custom2 Object or a Marquee object.
Don't care about the name of the object, they are object that display something according to the game selected.
So just place the object on the layout , and with AtomicManager for your configuration make point :
Custom1 Directory, or Custom2 Directory or Marquee directory to the folder that contains the images you want.
images must be named : <name of rom>.<Snap extension>
ex: pacman.png
or if it is a video pacman.avi (only custom1 and 2 manage video , not marquee=