subdownloader for download subtitles for Serviio folders?

Hi. Is there any possibility to implement the use of some program as “subdownloader” so that you can download subtitles directly in the downloads folder corresponding to the transmission for each series that we see?
I use Serviio to stream and some series that I see work very well with Opensubtitles, but when the subtitle is not on the page, I have to search for it on my own and paste it into the corresponding folder using “ftp” with the corresponding problem of “permissions” "Every time I want to send the subtitles downloaded from a machine to the RASPBERRY that does the job of torrent downloads where I have these downloads, it’s worth the redundancy. From already thank you very much.