Click on the "Edit" button for a page or post.

Click on the "Schema" tab of the Xagio plugin section.

Click on the "Assign Schema(s)" button.

Choose the schema group you saved the duplicated schema to.

Optional: Choose the schema type if you have many different ones to filter the results.

Optional: enter the schema name to quickly find it.

Click on the "Assign" button next to the schema that you want to add to the page or post.

Click on the "Close" button.

Verify the correct schema is assigned.

Click on the "Publish" button.