Can I send one player to another scene?

Let's say I have 3 players in a room. I want to pick one of them (may or may not be the host) and send him to a different scene. Other users should still see him, but the player should be in an independent scene.
Is that possible? How would I do that?

So far my attempts lead to a player trying to get back to the common room, but not spawning since there is no client connect when he joins... and I expect all sort of other issues.