> For the complete documentation index, see [llms.txt](https://docs.openbrim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrim.org/templates/precast-i-girder-bridge-workflow/organization-pig/cross-project-data-pig/shared-substructure-pig.md).

# Shared Substructure \[PIG]

For a group of substructures bounded by a support line, objects can be chosen as a whole rather than selected individually by using the library object ‘Shared Objects’. All objects associated with that support line will be selected for sharing.

**Support Lines:**

Specify a support line or support lines, which will result in selecting the related elements to be shared. The objects that will be automatically selected are:

* Alignment,
* Bridge,
* Insertion Points,
* and All substructures below.

**Transfer Result Extractions \[YES/NO]:** The result extractions can be transferred if this parameter is set to ‘YES’. The results to be extracted must be defined in the **Analysis Results** section of **Cross-Project Data**.


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