Just as we now can via script , override the media channel, so we can play media, without re-building a scene. We need this capability as well for the 4 Stream channels.
While it may seem like 4 should always be enough and you should know in advance what they might be, I think that is not enough.
If you have a club venue, image re-building your scene between sets, so a new Dj who just hopped on at last minute for a time slot, for a sick DJ or performer. Do you really want to rebuild the scene and disrupt a club, especially when you have another Dj still performing.
You want the ability to override one of the slots, and put in that new DJ's /Performers streaming URI and then be able to switch to it via script for a seamless transition. We need to be able to do this from script, so easy club management tools for a club can be made to make this simple for a club owner or anyone who has a guest Dj/ performer in there experience.