I don't know if this is more like a bug or a request (or even if I failed to configure the program properly), but I'll treat it as a feature.
One of the recent changes was to join split files, but the joined files remain in my temporary folder, not being moved to the unrar folder defined by the categories. It may sound awkward but shouldn't it be "renamed" to something like destination folder after download instead of unrar folder and work for both rared and split files?
As I see it there's no need for another option but the same settings apply to unrar or join folder.