Currently we can only set a room password when it is created. When you have enough people, you may lock the room not letting anyone in. This causes problems for streamers who cannot get into rooms for spectating as they cannot bypass the lock and unlocking the room results in the room getting flooded by other people.

As we discussed - Adding a lock-bypass password would solve this issue as you could set the password midway.

You could probably even merge the two features, making a password-locked room be the same as creating a room and immadietely locking it with a password.