# `GSGlyphCopyMasterAndSpecialLayers`

*Global Variable*

Master and special layers.

## Declaration

```swift
let GSGlyphCopyMasterAndSpecialLayers: GSGlyphCopyOptions
```

```objc
extern const GSGlyphCopyOptions GSGlyphCopyMasterAndSpecialLayers;
```

```python
GSGlyphCopyMasterAndSpecialLayers: GSGlyphCopyOptions
```

## See Also

### Copy Options

- [`GSGlyphCopyAllLayers`](/Core/GlyphsCore/GSGlyphCopyAllLayers) — Master and special layers.
- [`GSGlyphCopyAll`](/Core/GlyphsCore/GSGlyphCopyAll) — All copyable glyph and layer data.
- [`GSGlyphCopyThin`](/Core/GlyphsCore/GSGlyphCopyThin) — Master layers without background or additional editing data.