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# NSRuleEditor.NestingMode

Specifies a type for nesting modes.

```
enum NestingMode
```

## Overview

See `Nesting Modes` for possible values.

## Topics

### Modes

[`NSRuleEditor.NestingMode.compound`](/documentation/AppKit/NSRuleEditor/NestingMode-swift.enum/compound)

Unlimited nesting and compound rows.

[`NSRuleEditor.NestingMode.list`](/documentation/AppKit/NSRuleEditor/NestingMode-swift.enum/list)

Allows a single list, with no nesting and no compound rows.

[`NSRuleEditor.NestingMode.simple`](/documentation/AppKit/NSRuleEditor/NestingMode-swift.enum/simple)

One compound row at the top with subrows beneath it, and no further nesting allowed.

[`NSRuleEditor.NestingMode.single`](/documentation/AppKit/NSRuleEditor/NestingMode-swift.enum/single)

Only a single row is allowed.


---

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