CatTree example
From Organic Design wiki
Template:CatTree accepts a category name for its single parameter and renders a two-level tree of it's sub-categories and sub-sub-categories. For example. Note: the CatTree template requires TreeView4 since the old version did not allow trees to be included in templates for transclusion.
The following wikitext syntax:
{{CatTree|Images}}yields the following tree,
