Tools > Import > Rom Files > Add Files >
Do Not Use Folder (Folder does not allow us to use a File Extension so imports other junk)
But Add Files sucks as well because cannot search sub directory's.
https://www.youtube.com/watch?v=QPBOKS9QCW0
In LaunchBox
On the Left Under Search Must use Platform Category.
Select Console.Â
Click Add
New Category.
Name it what ever folder name you want.
select the new Category.
In Bottom Right click Add.
https://forums.launchbox-app.com/topic/55522-subfolders/