@tacoyamafan qbittorrent has a cool feature that allows you to create your own tags, so you can keep track of your torrents based on your own criteria. I have a tag made specifically for partial GT.ru torrents. Whenever I select only a few files from a torrent, I add this tag. Whenever I want to download something I can easily pause/resume all the torrents with this tag.
Some things to consider is that this pause/resume status can take a few minutes to be updated in the server, so the best thing to avoid being blocked from downloading, it is best to leave a few of those torrents permanently paused.