Add a compound property on a GDE line using the bl_line_object property

By adding the compound property on a GDE line using the bl_line_object property, you make the product structure more informative and usable. Use the bl_line_object property instead of the bl_revision property to create a compound property to display the underlying GDE object's property on the GDE line. General design element (GDE) objects are non-revisable objects. These objects can appear in Structure Manager as GDE lines, just as items are seen in Structure Manager as item lines. In Structure Manager terminology, both GDE lines and item lines are BOM lines. Currently, Structure Manager can display properties of these BOM lines. Some of these properties are specific to item lines and others to GDE lines, while some are common to both GDE lines and item lines. BOM line properties that are specific to item lines are not be applicable for GDE lines. For example, some item revision-specific BOM line properties are specifically applicable only to item lines and are not applicable to GDE lines. Some of these have revision property-specific text in their names, and because GDEs are nonrevisable objects, these are to be used only for item lines. Following are some examples of properties not applicable for GDE lines: bl_revision bl_revision_change bl_sequence_no bl_config_string