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[`SettingGroup`](SettingGroup) › [`addClass`](SettingGroup/addClass)
## SettingGroup.addClass() method
1.11.0
**Signature:**
```typescript
addClass(cls: string): this;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| <code>cls</code> | <code>string</code> | |
**Returns:**
`this`