Which file extensions not to share

In older Slsk client we've been able to choose which types of files we didn't want to upload, which was really useful to me, because Soulseek aside I download from torrents and file hostings not only music, but also movies and games and it all goes into same folders. Then I have those folders added in Foobar's library and it doesn't disturb using it, however in Slsk I'd have to add hundreds of subfolders separately, or it will, like it does right now, share movies and other stuff too.