Edit Existing Schema
To edit an existing schema, from the 'Tag Schema' screen, click on the edit button under the 'Actions' column against the desired URL to launch the Schema Editor
To delete an existing schema type, choose the schema, click on the 3 dots, and click on 'Remove Schema'.
To remove a property, click on the 3 dots by the property and click on 'Remove Property'.
Click the menu option at the top of the Schema Editor Menu to add a property to the existing schema type.
To add a new schema type click on the 'Add Schema Type' dropdown menu and select the schema type.