To Add a New Property
Using a Concatenate Expression
In the main component mapping dialog, scroll to the end of the
property list, and turn on the checkbox in the first empty row.
Type a property name.
Click in the empty field under the Component Name column to
display a drop-down menu with two options:
Concatenate properties
…
Truncate properties …
Select Concatenate properties…
In the dialog box that opens, click Add.
This is the same dialog functionality as
selecting a SourceUniqueId property. Valid property types are any property from
the current open i-model, any fixed character, and file name metadata.
Adjust the order of the objects as desired and click OK when
finished.