Richard Haseltine - 05 October 2012 05:18 AM
In Smart Content or Content Library right-click on the item and select Categorise. In the dialogue right-click on a category to get a menu with Create new category….. You can also right-click on a category in the Content Library pane and use Create New Sub-category from the menu that appears.
Minor correct: categorize only works in Content Library, not in Smart Content, which would be very useful. Feature request filed here https://bugs.daz3d.com/view.php?id=48029 (pls add you support if you agree)