I'd like to add a sidebar for advertising banner ads to pages other than the forum list page (I like to keep the current template on the forum list page). EDIT: I did get this done a couple years ago by adding an Extra_Sidebar template, and modifying the Extra.css template (I had help), but the changes made seem to interfer with the responsive design. I'd like the extra_sidebar template removed for smaller mobile devices. Question: The modification I made in 2013 was for a previous version of xenforo. Has the ability to add a sidebar to pages other than the forum list been added since then? If not ... How do I make the exra_sidebar template I added, "responsive?" Thanks - And I hope I'm not too confusing.