If the MarkNonplotLayers attribute is set to true, all layers with names containing this suffix will be marked as non-plot. No action will be performed if the suffix is empty. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0) 
Syntax
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Exceptions
| Exception | Condition | 
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| Autodesk.Revit.Exceptions ArgumentNullException | When setting this property: A non-optional argument was null |