You don’t need to specify anything. Just sending a suitable OSC string will replace whatever is currently in the text source. You can find the OSC syntax required by turning on OSC mapping then clicking in the text area, you’ll see the OSC address down in the help window. I used this to drive a coun...
You could probably do this using Touch Designer. It would manage the GET request, then re parse the text into a suitable OSC string (you can already dynamically alter text sources via OSC).
I can’t imagine this becoming an “off the shelf” fix or feature, but it’s a good geek quest!
Basic zoom doesn’t use stream keys in that way. You may not need OBS at all, have a look for a bit of software called “camtwist”. This allows you to pick a syphon source (Resolume!) and then presents itself to the system like a webcam. Zoom can “see” camtwist” as a usable source. I hosted a family q...
I’m guessing Arvol will say Touch Designer? I’ve started using a combination of that and Companion. Companion being the initial trigger (simple messages). Touch designer listening to companion and then sending multiple messages as needed.