In the Property Mapping dialog, click Add Mapping Rule . A new row is added to the Property Mapping dialog.
In the Category column, double-click a cell, and from the drop-down menu, select the Category you want to associate with the Takeoff Property. Alternatively, type a Category name to jump directly to the required Category.
Note: The Categories listed here represent all the Categories associated with your file. Categories are displayed as tabs in the Properties window.
In the Property column, double-click a cell, and from the drop-down menu, select a Property. These properties are the model properties associated with the selected Category.
Click a cell in the Takeoff Property column, and from the drop-down menu, select the Takeoff Property you want to modify.
To delete a Category or Property, click a cell and press Delete.
To delete a row, click Remove Mapping Rule .
Click OK. The updated properties are applied to the file.