Introduce an option for rendering the sub items in the Menu in columns layout by either:

- setting max number of items per row (fixed number of columns) and add as many rows as needed 

- setting max number of items per column (fixed number of rows), which will add more columns if there are more items

Hi,

Currently, the vertical menu/tree component lacks keyboard navigation using arrow keys when the menu options exceed the visible screen area. Users who are not familiar with or comfortable using scrollbars face difficulty navigating through lengthy menus.

Problem Statement:

• Large vertical menus that extend beyond screen height require scrollbar usage

• Not all users are familiar with scrollbar navigation

• Poor user experience for keyboard-reliant users

Proposed Solution:

Add an enable/disable configuration option for arrow key navigation that allows:

• Up/Down arrow keys to navigate through menu items

• Auto-scroll behavior when reaching menu boundaries

• Enter/Space key to select items

• Configurable option to enable/disable this feature

Attached is the screenshot of desired feature on tree (just for reference).