Stream from adobe encoder

Yes, this can also be used for external encoder applications (Wirecast, Flash Media Live Encoder, Open Broadcaster Software, iOS GoCoder):
https://www.turnkeyclone.com/twitch-tv-script-for-live-broadcasting/

In channel post mode, users can also access addresses for configuring the external apps (from channel management page).

To control these externally published streams, special rtmp side software functionality is required:
https://www.videowhisper.com/?p=RTMP-Session-Control