SeasonOnTrain Category Tree Widget for Elementor adds a collapsible category tree widget for Elementor.
It can show nested categories, optionally expand branches by default, hide the default category,
link category names to archive pages, and optionally show related posts for leaf categories.

Usage

After adding the widget, you can configure the post type source, leaf post list, icon text or images,
default expansion, and category link behavior from the Elementor panel.

Settings

The widget includes the following options:

Expand All By Default
Post Type
Hide Default Category
Enable Category Links
Show Post List For Last Category
Leaf Post Limit
Expand Icon
Collapse Icon
Expand Icon Image
Collapse Icon Image