For RTMP feature , not only you can do it via Facebook but also you can do it via Youtube or any RTMP platform. Here is a short tutorial of how to start a Live RTMP Broadcasting event via Youtube.
1. Click + button and chose Live broadcasting (RTMP)
2. Then input Youtube Live Streaming Server URL and Stream Key
3 .You can find that information at your Youtube page (https://studio.youtube.com) OR (https://www.youtube.com/live_dashboard?nv=1)
4. Then input here like this
5. Click Start Share Then check your Youtube Preview page, then wait for a few seconds the streaming video will come to your Youtube page.
6. Then you can start to go live and do your Youtube live broadcasting.