---
title: Windows
description: Tile windows in thirds and fourths with Rectangle, and change its shortcuts in config/.
---

[Rectangle](https://rectangleapp.com) tiles windows in thirds and fourths,
which suits a wide screen. It comes from `config/apps.conf`, and its
shortcuts live in `config/windows.conf`:

| Shortcut | Window             |
|----------|--------------------|
| `⌘⌥←`    | left third (33%)   |
| `⌘⌥↑`    | center third (33%) |
| `⌘⌥→`    | right third (33%)  |
| `⌘⇧⌥←`   | left fourth (25%)  |
| `⌘⇧⌥↑`   | center half (50%)  |
| `⌘⇧⌥→`   | right fourth (25%) |

```sh
dot apply windows
```

This also turns off macOS's own edge tiling (`windows native-tiling false`),
so the two don't compete, and restarts Rectangle to load the shortcuts.
Sizes are fractions of the screen, so they work on any display.

`⌘⌥←` and `⌘⌥→` switch tabs in Chrome, Dia and Zed; Rectangle takes them
first.

## Once per Mac

Rectangle needs **Accessibility** permission to move windows. Grant it when
it asks, or in *System Settings → Privacy & Security → Accessibility*;
macOS doesn't let scripts grant it.

## Change a shortcut

```sh
rectangle shortcut <action> <combo>
```

`<combo>` is modifiers and one key joined by `+`: modifiers `cmd`, `opt`,
`ctrl`, `shift`; keys `left`, `right`, `up`, `down`, `space`, `return`, or a
letter. For example, `rectangle shortcut first-third cmd+opt+left`. The
actions are listed in `src/settings/rectangle.sh`.