I'm using JDownloader 3.2.66 under Joomla 3.9.16. I created a document tree with the categories "Recipes", "GV" and some other. In this tree there are round brackets "Recipes (17)" after each category, which indicates the number of subcategories. If there is no subcategory in a category, a strange graphic is displayed after the opening parenthesis. Therefore I want to switch off the display of subcategories in the tree. In my request I have added a screenshot. How can I deactivating these information?