No, I don't want SoftwareList, nor I have a set for it, I just have a full MAME 0.231 set and wish to import the Arcade-only games, including unplayable ones.
I'm talking about SoftwareList because when I uncheck "Skip unplayable games", after scanning the ROM set, things like c64, AMC, 6501 and many other (hundreds or thiunsands) entries like that appear in the list of things to be imported, but those things are not present in my MAME ROM set. If I go on, among the actual games, many blank slots with those names appear in Launchbox.
EDIT: I am on another PC now, I'll post screenshots tomorrow