@TimothyJ You can try the CSS below in your layout.css of your template.  .toc-level-1.back-matter::after { content: ''; /* Remove the dots for back matter entries */ display: none; /* Ensures nothing appears after the heading */ }  Please let me know if that doesn't work. Thanks,Prashant  

@TimothyJ did this solve the issue? If so please mark this closed (by accepting the solution.

@TimothyJ ,You can achieve this by applying outputclass to the topicref which you want to exclude like below: <topicref href="topic.dita" outputclass="no-toc"/> Now navigate to template Stylesheets and add below css in layout.css to exclude toc from pdf output. CSS Rule:.toc-body .no-toc, .toc-level...

@Mike-E Thank you for your query.I further checked and found that dynamic prefixing for @othertype values is not supported currently.I will be raising a Jira ticket requesting the implementation. Thanks Prashant  

Hello @THoltham , Can you please try to use below :document.documentElement.getAttribute('lang');Please let me know if this solution works. Thanks,Prashant