# `GSEditViewController reflectSelectedMasterIndex:`

*Instance Method*

Reflects the given master as selected in the toolbar and Layers palette without discarding an active interpolation preview.

## Declaration

```swift
func reflectSelectedMasterIndex(_ masterIndex: UInt)
```

```objc
- (void) reflectSelectedMasterIndex:(NSUInteger) masterIndex;
```

```python
reflectSelectedMasterIndex_(masterIndex: int)
```

## Discussion

Clears any Intermediate layer reflected by [`GSEditViewController reflectSelectedLayerId:`](/Core/GlyphsApp/GSEditViewController/reflectSelectedLayerId:).

> **See Also**
> `setMasterIndex:`, [`GSEditViewController reflectSelectedLayerId:`](/Core/GlyphsApp/GSEditViewController/reflectSelectedLayerId:)