Too Long; Didn't Read
An OBS plugin called [Advanced Scene Switcher can be installed with the appropriate installer for OBS-WebRTC. The plugin is compatible with Dolby.io Streaming, but the installer will only look for Obs-Studio. You can start the stream ahead of schedule, but with a static image or video that simply lets the audience know that stream is starting soon. We want to ensure that users know that you are about to go live soon to keep them on the page instead of closing the window. We can copy this idea to add macros for automation for intro video and ending the stream as well.