It's a pleasure using Filebot and do so regularly (or rather Cron uses it for me

The -get-missing-subtitles CLI option I use often, this downloads .srt's. I was wondering if it'd be possible to have it download VTT files. Or convert SRT files to VTT files.
Opensubtitles.org seems to have something related to WebVTT: trac.opensubtitles.org/projects/opensubtitles/wiki/XMLRPC
Thanks!