Hi Don! As for removing flags from the grouping list,it looks like you can only remove one individual at a time (Results/highlight individual/ShiftF9). I'm not sure if you could take care of it with the Global Replace options or not...probably doubtful, but you could sure try it.
As for Flag A, is it possible that you chose that flag (already in use for something else)? If you did, you could have overwritten the information that was in Flag A previously.