Hi there, we extendend the knowledgebase and its design. Now you sort them manually by entering order numbers. If more categories have the same order number, they are sorted alphabetically. We are proud to present subcategories, just select a parent category by dropdown, that's it. At the moment the mod only supports one level of subs. But we are working on nested levels.
Here's a little showcase of the modification and it's appearance in our theme framework.