That's possible, but still the idea is that we don't allow pings. If they did think it was a ticketing system then there's no harm in telling them not to ping anyone, and it also allows people looking in the future to know that we don't allow pings.
RTMP is for Stream Live, so you should be able to simulcast. You need to get an API token from the Cloudflare dashboard and then use that example command given in the documentation.
Once you see the stream appear in the dashboard you should be able to turn on Simulcasting for it on that same page (assuming you've made the API call to add the destination).
Yeah, ports isn't in the documentation yet. I can't seem to get it to work though, unfortunately. It accepts my custom port on the endpoint, but attempting to visit the LB domain times out
Ok, the port field either does nothing, or it's still restricted to the fixed list of ports that cf claims to allow. Seems like bad UI implementation or something to me. Disappointing