Can I lock/unlock multiplayer room manually ?

I am working on multilayer game,,,, i am javascript programmer and Understand how signalling messages are working..... so I am asking if there is any signalling message on your server to to lock/unlock room manually...

this.signallingSend({

message: "join",

game: game_,

instance: instance_,

room: room_,

max_clients: max_clients_

});

is ther something like this.signallingSend({

message:"lockroom",

room: this.room

}); or ? no ?

thanks

Basically no, but you can work around it by creating a new room when you need it to be opened after locking.