I need to integrate Optinmonster in my Xenforo platform. According to the instructions you are able to copy the provided API code and paste it into the header, just before the closing </header> tag. Alternatively, it can be put just before the closing </body>. If you add it to a specific page, then it is only that page where it will load. If you add it to a template .html file, then it will load on whichever pages that template loads.
Is this possible to do this with a template modification?