I love SLOBS but I cant fully make the switch without this feature.
Why is this feature handy you ask? It allows me to stream privately through discord, skype and other web chat services that use webcams. It allows me to do test streams before actually going live on twitch and make changes on the fly.
Its already on every other streaming program.
The feature list on the website even shows it to be a thing, but of course SLOBS doesn't have it :(