Add Entry/Exit Traffic Variables as Segment Rule Criteria in Data Warehouse/SiteCatalyst v15

In Discover, it is possible to build segments based on rules around the Entry and Exit values of each and every traffic variable.  However, it is not possible to do so in SiteCatalyst v15 and in Data Warehouse for SiteCatalyst-pathing props.  So - in other words - if Pathing is enabled on Site Sections, we would also like it to be possible to build a segment container with a rule which evaluates Entry Site Section.