# NSButton.ButtonType.multiLevelAccelerator A button that allows for a configurable number of stepped pressure levels and provides tactile feedback as the user reaches each step. ``` case multiLevelAccelerator ``` ## Discussion Use [`maxAcceleratorLevel`](/documentation/AppKit/NSButton/maxAcceleratorLevel) to configure the number of pressure levels. For other types of buttons, this property value defaults to `1`. For multilevel accelerator buttons, this property value defaults to `2`, and you can set it to a value between `1` and `5`. Like a normal accelerator button, the button sends an action when the user first clicks it. If [`isContinuous`](/documentation/AppKit/NSControl/isContinuous) is , while the user clicks the button, it then sends actions at repeating intervals that are based on pressure. If [`isContinuous`](/documentation/AppKit/NSControl/isContinuous) is , the button sends actions as the user presses harder and reaches different levels of pressure. The button sends a final action when the user releases the button. The value of a multilevel accelerator button is distinct from its state. The [`integerValue`](/documentation/AppKit/NSControl/integerValue) of a multilevel button is `0` when the user doesn’t click it or `1` through `5` when the user clicks it, depending on the level of pressure. If you set the value of a multilevel accelerator button explicitly, the button doesn’t send an action until pressure reaches the level you specify. On a system that doesn’t support pressure sensitivity, a multilevel accelerator button’s value is always `1` when the user clicks it. This option corresponds to the Multi Level Accelerator type in Interface Builder’s Attributes inspector. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)