You should be able to add additional endpoints by clicking the pencil to edit the existing stream, then clicking the blue plus beside the existing endpoint to add another one:
Do you think it would help if we changed the “Add stream” button to “Add stream(s)”, and/or would it be better to remove the current pencil edit button and just change the “Add stream” button to an “Edit streams” button when there’s one or more stream already configured?
To be honest, I could have been more attentive. I had done it before but the fact that this client was using 2 cameras threw me off a bit. I was expecting to:
Add stream
Pick camera
type udp
When it comes to layout, everyone has its own opinion and this would be endless.