Unable to stream Zoom to private Facebook Group

[KatieLola]

I'm struggling to find out how to do steps 6, 7, 8 and 9. I'm just not getting the option to 'Click Configure Custom Streaming Service.'

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0061523#h_6782fef2-fd3c-4300-8986-...

I'd be grateful for support.