Chunk25:Help screen column header Select Max Levels
From Joomla! Documentation
- Filter by Max Levels (Category Level). Lets you show only items whose category is at or above the specified level in the category hierarchy.

- - Select Max Levels -: Show all items regardless of level of their assigned category.
- 1: Only show items whose category is at the top level in the category hierarchy (in other words, with categories whose parent category is "- No Parent -".)
- 2-10: Only show items whose category is in the top 2-10 levels in the category hierarchy.