This video demonstrates how to create a Table of Contract and to make it a fixed component of your Contract Language. The process is finicky and may require repeating the same steps to achieve the goal.
 
Be sure to download this helpful file.
 
Creating ToC with New Styles:  https://emptoris.support.ibmcloud.com/FileManagement/Download/667a744c03a84a5892ae3c74f7e633a4