***Note from Migration:***
Original Title was: Add a new parameter Common Attribute Values for transformers that group attributes and builds list like TopologyBuilder
Using TopologyBuilder, to retain the common values of an attribute as an edge and node attribute. Add a new parameter Common Attribute Values with a predicate textbox named _common_ to attributes found to have the same values on the grouped attributes. E.G. a road or a network line which has a common ObjectID or unique name, 30526 or Happy Hill road, an attribute called _common_ObjectID = 3052 and _common_Road_name = Happy Hill road will appear on the attributes of each edge and each node.