Professional WordPress Plugins and Services. wpDiscuz, WooDiscuz, Advanced Post Pagination
How could you select two Topic Prefix to a post when it is published.
The multiple topic prefix is ready. You can use it with 3.2 and higher version of wpForo Topic Prefix addon: https://gvectors.com/product/wpforo-topic-prefix/
@tomson thank you very much, I just tried it and it's perfect.