• Tab - Once the focus is received, users will be able to use the keyboard to change the focused menu item.
• Shift+Tab - reverses the direction of the tab order. Once in the widget, a Shift+Tab will take the user to the previous menu item.
• Up/Down arrow keys - select previous or next item in a vertical menu or sub menu.
• Left/Right arrow keys - select previous or next item in a horizontal menu.
• Alt Up/Down arrow keys - opens or closes the popup.
• Alt Left/Right arrow keys - opens or closes the popup in a sub menu item or vertical menu.
• Esc - closes all popups.
• Enter - Triggers the item's click.