---
title: NSToolbarItemGroup.SelectionMode.selectOne
framework: appkit
role: symbol
role_heading: Case
path: appkit/nstoolbaritemgroup/selectionmode-swift.enum/selectone
---

# NSToolbarItemGroup.SelectionMode.selectOne

The system displays a highlighted mode on the most recent item selected.

## Declaration

```swift
case selectOne
```

## See Also

### Selection modes

- [NSToolbarItemGroup.SelectionMode.momentary](appkit/nstoolbaritemgroup/selectionmode-swift.enum/momentary.md)
- [NSToolbarItemGroup.SelectionMode.selectAny](appkit/nstoolbaritemgroup/selectionmode-swift.enum/selectany.md)