There is a MapClass in the tool schema for Drawing. The MapProperties for this MapClass define the properties that will be published from the Smart P&ID Drawing item to the SmartPlant schema PIDDrawing object. If new properties are added to the Drawing item type in the Data Dictionary Manager, and corresponding new properties are added in the SmartPlant schema, then they can be mapped by adding new MapProperties to this MapClass in the tool schema using the Schema Editor.