Sorting an automated matchmaking system

Hey there,

So I'm using the Unity Multiplayer (https://multiplayer.unity3d.com/) and their Networking classes; Is there a way to close a network match? I can't seem to find a way unless I attempt a connection after my host player has left and it times-out

In addition, while I'm here, if there is a way to control the time-out error I'd love to know how to...

thanks