Hey @cursor_928741
The streaming tab was from a deprecated extension called omni.services.streamclient - to find this extension, you would need to revert back to Kit 106.3, which is an available branch on Kit App Template repository.
But to be clear, you do not need this extension to stream - this extension was a debugging tool to expose the port address and check that the stream application was working. Using Kit 107+, you can simply add an Application Layer when you create a new template and it will create your streaming application that you can connect to the Kit App Streaming API - no need for the deprecated extension.
Yes, you do not need any menu or menu item to start streaming. It is just purely about starting the kit app in the “streaming mode”. See this video for help. Discord