Hi @white-florist-79615, LiveKit doesn’t support something like that out of the box, however, you could build it. One way you could do it:
1. In your application, build a simple page/component which allows someone to upload a presentation file
2. Start an RTMP-out LK Web Egress job which displays that presentation on a web page
3. Start an LK Ingress job which takes RTMP-in and feeds it back into the room