# `GSEditViewController.masterIndex`

*Instance Property*

## Declaration

```swift
var masterIndex: UInt { get set }
```

```objc
@property (assign) NSUInteger masterIndex;
```

[See also `masterIndex` in the Python API](https://docu.glyphsapp.com/#GSEditViewController.masterIndex)

```python
pyobjc_instanceMethods.masterIndex() -> int
pyobjc_instanceMethods.setMasterIndex_(masterIndex: int)
```