The tree is optimized for screen reader and keyboard only users:
- Set focus to the tree using the keyboard.
- Press the Up and Down Arrow keys to move focus between the tree options.
- Press the Left and Right Arrow keys to open or close subtrees.
- Press the Ctrl+Left and Ctrl+Right Arrow keys to open or close groups of subtrees.
- Press any letter or number to jump to a tree item starting with that character or digit.
- Press Enter to activate a tree option.
- Press Escape to close the currently open tree.
- Mouse users can click the desired tree option to toggle as usual.
