Dynamo Hierarchy: Rhythm>Revit>Elements>Group>Group.UngroupElements
Description:
Will set the element to either pinned or not pinned. True is pinned, false is unpinned. For multiple elements use List.Map
Inputs:
groups : Element
Outputs:
element : Element
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
Rhythm is a collection of custom nodes for the Dynamo visual programming environment. The idea is this package helps users maintain Rhythm in Revit with Dynamo. It primarily consists of out of the box Dynamo nodes used in clever ways as they apply to the Revit environment.
There will be a series of posts providing examples of what the 80+ custom nodes in Rhythm can do for you.
Interested in the inner workings of Rhythm? Feel free to check it out on GitHub!
-johnp
Dynamo Nodes 