# horizontal_scroll_key

### Description

@short: Enables/disables horizontal scroll by the Shift|Alt|Meta key + mouse wheel movement

@signature: horizontal_scroll_key: string | boolean

### Example

~~~jsx
gantt.config.horizontal_scroll_key = "altKey";
~~~

**Default value:** "shiftKey"

### Related Guides
- [Keyboard Navigation](guides/keyboard-navigation.md#builtinshortcutforhorizontaltimelinescrolling)

### Change log
- added in v6.3