1. To use this app, select the structure tab from the ribbon.
2. Under 'Structure' tab, click on member set in the setting tab.
3. From the shape standard list select the Mexico.
4. Choose the shape type and size as per need.
5. Click on Ok.
6. Now you can insert the member as per BS standard.

Installation notes:

This catalog is compatible with Autodesk® AutoCAD® Plant 3D 2019 and higher versions. 

Copy “Structural Catalog.acat” file from the 'C:\AutoCAD Plant 3D Content\ CPak Common\PECS Mexico Steel Content Pack' and replace to the existing file in the C:\AutoCAD Plant 3D 2025 Content\CPak Common.

So before replacing the file, please backup the existing file “Structural Catalog.acat” from the following location: C:\AutoCAD Plant 3D 2025 Content\CPak Common 

Uninstallation notes:

To uninstall this content pack, please go to Control Panel => Programs and Features => select the "PECS Mexico” => Uninstall