I use this layout
http://malafe.net/index.php?page=layouts&subpage=cabinetHere is my mame.cfg:
# Generated by Attract-Mode 1.4.0
#
executable D:\Retroarch\retroarch.exe
args "[romfilename]" -c mame_libretro.cfg -f
rompath D:\Retroarch\content\mame
romext .zip;.7z
system MAME
info_source mame
import_extras C:\Attract Mode\catver.ini;C:\Attract Mode\nplayers.ini
artwork artwork D:\Emulatory\mame\artwork
artwork cabinets D:\Emulatory\mame\cabinets
artwork cpanel D:\Emulatory\mame\cpanel
artwork flyer D:\Emulatory\mame\flyers
artwork marquee D:\Emulatory\mame\marquees
artwork snap D:\Emulatory\mame\snap
artwork titles D:\Emulatory\mame\titles
artwork wheel
In layout options I have configured artworks paths like the above, but I don't get the cpanel. I have only snaps and marquees.
P.S. Is there any option that you would implement artwork viewer, like in gameex? It would be nice to hit the button and switch selected game artworks in fullscreen.