I've done some searching and will continue to do so, but I'm looking to add a Button on the Thread View template that will take my Users back to the Topic View page. My Users feel like it's easier to get back there via their phone, while updating which topics have been viewed already. (They don't want to use the back button or scroll down to the breadcrumbs.)
At the bottom of a topic/thread, just above the Quick Reply window, I'd like a button that says, Return to Forum Topics, like in the image below. I've been able to create and add the xen: phrase return_to_topics, but I the link, preferably a button, that takes the User back to the page to see all the topics.