In a large source list which has not been put into folders it would be much easier to group sources if the surname was automatically put into the title.
Um, it already is ...? If your ancestors are Hungarian (like mine), the surname may even be the first thing in every title.
(With the schizophrenic auto-titler that uses the primary-person template for every title, even when it thinks it's using the non-primary-person template, the name is very nearly the only thing in the source title.)
I was thinking perhaps the poster meant Source Box, with the mention of "Folders," but even so