# `GSWindowController addTabWithDisplayString:validate:`

*Instance Method*

## Declaration

```swift
func addTab(withDisplay displayString: String, validate: Bool) -> GSEditViewController?
```

```objc
- (GSEditViewController *) addTabWithDisplayString:(NSString *) displayString validate:(BOOL) validate;
```

```python
addTabWithDisplayString_validate_(displayString: str, validate: bool) -> GSEditViewController
```