Hierarchy
In the catalog's left navigation panel, you can set up an article hierarchy.
Adding Articles: You can add an article at the top level (root of the catalog) or nest it within a section.
Nested Articles: Any article can contain another article, making the parent article a section.
Depth Limit: The maximum number of nested sub-sections is 8.
Reordering: You can change the order of articles in the left navigation by dragging and dropping them.
Collapse a section
In the settings of a first-level section, turn on Collapse section by default — when the catalog opens, the section starts collapsed in the left navigation. If an article inside it is open, the section expands on its own.
