Hi, I would like to have the ability to add a featured image to my forums and categories (like for posts).

On bbPress we have to add something like that in our function.php file

add_post_type_support('forum', array('thumbnail'));

add_image_size('forum-category-thumbnail', 1080, 320, true);

But I don't know how to make it happen in wpForo...

Could you please tell us what code we need and where to insert it ?

Thanks.