How to create common item structure and to reference from another organization

Summary:

Content (required):

I created item structure in the master organization and want to refer to it via one of the associate organizations to the item so I don't need to recreate it. Please send instructions as seems that I'm missing something in the process.

Thank you!

Version (include the version you are using, if applicable):

21D

Code Snippet (add any code snippets that support your topic, if applicable):