Hello ulfben. I do site to WordPress 3.2.1 and I plan to use your plugin WP-dtree. But unfortunately there is no filter for the category - to exclude a category tree. I'm doing a site for translation of documentation and will have ~700 categories. The structure would look like - Uncategorized (level 1, they will not be displayed on site) - will not change it, it will remain so. Then under it will be from 7 to 10 subcategories (level 2, they will be displayed on site). And in each of the categories of Level 2 will be the other category (will be displayed on site). Please tell me how to add a filter in your plugin? After all, it will be easier to exclude six categories of level 2 (or level 3,4...), instead of many. Sorry if I did not understand your plugin. Thank you.