The separator between these two areas signals that they have different actions.

The arrow icon opens an options listaction menu, as a Drop-Down Menu.

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The primary action should also be shown in the options listaction menu.
The button has 2 modes of operations:
- Persistent split button - the default action is kept until the user makes a different selection, which then becomes the default.
- Fixed split button - the primary action is kept as the default, even when the user selects another option.
The options list action menu closes when the user makes a selection.

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Clicking the left-hand action area triggers the primary action.
Clicking the right-hand drop-down arrow opens an options list action menu of alternative actions.
Clicking an option action in the options list action menu. triggers the related action.

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for navigation → use Links.
when there are a lot of related actions (more than 5 or 6) → consider using an Action Menu.

Future Version (TBD)

Semi-enabled - When the menu can also contain specific disabled actions while the Primary is enabled, and vice versa.

Accessibility compliance

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