cannot add multiple torrent files at once

[ac169]

the magnet format can add multiple records at once, but adding multiple torrent files at once can only handle one file. We hope to add the function of adding multiple files at once

additionally, when downloading aria2, is it possible to use a separate path to save progress control files and seed cache files that are not related to the downloaded files when the downloaded files are mixed together perhaps it's a problem with aria2 itself