This project is completely free and open to use under the MIT license. Keyboard navigation. Drag & Drop. Virtual Scroll to support large trees. Checkboxes, Async children load. Expand/collapse/select nodes. Events: activate, collapse, expand, focus, etc. Custom node template (string or component) Custom loading component (for async data). Custom children/name attributes. API, very basic customizable CSS. Angular Tree Component comes with a default mapping of mouse events and key events...