Hi, (Sharing my experience) To sort the categories you must take into account the following: If you manually relocate an existing category (provisionally) as a subcategory of another and then relocate back to where it was previously, this category will be located automatically at the end of categories corresponding to the relocated node. Following this rule, and with a little patience, you can order all categories as you like. Greatings -- Francesc Mart?nez Olmo .?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.? Dept. M?todes d''Investigaci? i Diagn?stic en Educaci? Facultat de Pedagogia Secci? de Recerca - Institut de Ci?ncies de l''Educaci? Universitat de Barcelona