I just realized that the nightly build did not include the options to support X11 screen and PulseAudio capture. So, I just enabled them, and they will be available starting with version 12.08.12.
Encoding is now implemented and available since version 12.08.10. It is still young and needs additional testing and tweaking; however, it basically works on all platforms. It also supports batch encoding, but currently the control over the queue is limited to simply canceling a running job (right-click a running job to open its context menu).
When you are playing a live source, encoding acts as a capture function. That is particularly handy for the Blackmagic Design SDI/HDMI input, but on Linux you can also use it for screen recording and webcam (V4L2) and audio recording.
In addition, it also supports a streaming output as an alternative to file output, but you really need to know what you are doing to take advantage of it at this time. I have pre-populated the stream URL field to something suitable for MPEG-2 Transport Stream; so, to use that, set the format to mpegts and choose codecs that mpegts supports: MPEG-1, MPEG-2, MPEG-4, H.264, AAC, AC-3, MP2, MP3.