Folder names in Webman with PKG/ROM Launcher

Hi

I did some research, but didn't found much thing..

In order for Webman to recognize Roms like this..

What should be the Folders name?
I can only make Webman read Super Nintendo roms by putting roms on dev_hdd0/ROMS/SNES

Super Nintendo folder name has to be SNES , ok good.
But what about other emulators like Genesis, NES, Game Boy Advanced...? I tried GEN for GENESIS but didn't showed up on Webman.

I...

Folder names in Webman with PKG/ROM Launcher