True if the stairs run ends with a riser, false otherwise. 
   Namespace:   Autodesk.Revit.DB.Architecture  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2013 
Syntax
Remarks
 If selected, Revit adds a riser to the end of the run. Clearing this option will change the number of risers in the run. You will need to manually add or remove risers to maintain the original height.