About Managing Survey Extended Properties
Use extended properties to import and export Survey LandXML attributes and to create, assign, and view user-defined attributes.
About Property Field Types Table
Use this table to determine the display of the various Property Field types both in the Survey user interface and the display of extended properties that are assigned to Survey points in the drawing.
About Extended Property Definition Files
You can edit default .sdx_def files or specify a pre-defined schema with specialized LandXML and User-defined properties contained in an existing *.sdx_def file.