Menu Button
General guidance
The menu button differs visually from a regular button by featuring an expand icon, which triggers a dropdown menu. By default, this menu is positioned below the button, but it can also be displayed above if there is not enough space.
Usage
Use the menu button if: You need a menu that provides more than one option.
Do not use the menu button if: The menu provides only one option. In this case, consider using a button instead.