Atomic FE uses a file called METADATA. This file lets you rename the displayed name in the game list to anything you want. This can be accessed through the built in config program. I don't know how MameWah gets the information for its displayed lists, but if it just looks in a a text based file (i.e. "1941 (J) (rev1.5)= 1941"), you might be able to transfer a custom game config. list that you have created in AtomicFe to MameWah.
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