This node will generate 3D Room Tags for all rooms using a family provided in the package directory.
Source(s): http://sixtysecondrevit.blogspot.com/2016/01/rhythm-update-to-3d-room-tag-node.html and http://sixtysecondrevit.blogspot.com/2015/11/3d-room-tags-with-dynamobim.html
Dynamo Nodes 
new input: phasing. What do we plug into here?
Whatever phasing your rooms are in. (eg. Existing, New Construction, Phase 1)