RoomS tag

Today, I saw a question that "Is there a way to maintain the individual rooms in a suite, but create a tagable suite that includes all the rooms as well?"

And here is a solution for it.

Make another level to make a room which can contain multiple rooms above the level of the rooms. And use room separator instead of the walls between rooms at the base level.(of course room boundary option of walls must be unchecked)
 Then you can make another room at the new level, and this represents all rooms.

And its also possible to create tag for all rooms at base level plan like this video.

Enjoy. :-)