> ## Documentation Index
> Fetch the complete documentation index at: https://radiusbrowser.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Quickstart

> Open a tab, split it with Radius Chat, and group the workspace.

With Radius open, run these commands one at a time in any terminal. Each step
builds on the one before it.

## 1. Open a tab

```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
page="$(radius tab open "https://example.com")"
```

Radius opens the page and saves its returned `tab_...` ID in `page` so the next
command can use it.

<video controls muted playsInline src="https://mintcdn.com/inspector-12805d8f/XifxWshzhd_l_q9V/videos/radius-open-a-tab.mp4?fit=max&auto=format&n=XifxWshzhd_l_q9V&q=85&s=d3ea1c4a6d65a8c31e375a2f712ea96b" data-path="videos/radius-open-a-tab.mp4" />

## 2. Split the tab

```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
chat="$(radius tab open "radius://chat" --right-of "$page" --size 40%)"
```

Radius Chat opens in a new pane to the right of the page. The original page
keeps 60% of the space and Chat uses 40%.

<video controls muted playsInline src="https://mintcdn.com/inspector-12805d8f/XifxWshzhd_l_q9V/videos/radius-split-a-tab.mp4?fit=max&auto=format&n=XifxWshzhd_l_q9V&q=85&s=fd3af2aab70d299cd976f54d216abac5" data-path="videos/radius-split-a-tab.mp4" />

## 3. Group the workspace

```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
group="$(radius group create "CLI Demo" --tab "$page")"
```

The split becomes a group named **CLI Demo**. Radius treats a split as one tab
collection, so grouping either pane groups both panes together.

<video controls muted playsInline src="https://mintcdn.com/inspector-12805d8f/XifxWshzhd_l_q9V/videos/radius-group-a-tab.mp4?fit=max&auto=format&n=XifxWshzhd_l_q9V&q=85&s=e7e83b4d54e8cfb6ad597827c4173546" data-path="videos/radius-group-a-tab.mp4" />

You have now created a grouped, two-pane workspace with three commands.

## Keep going

Inspect the group from the terminal:

```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
radius group show "$group"
```

Open another page in the group without changing the active tab:

```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
radius tab open "https://developer.mozilla.org" --group "$group" --background
```

Return focus to the original page:

```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
radius tab focus "$page"
```

<video controls muted playsInline src="https://mintcdn.com/inspector-12805d8f/XifxWshzhd_l_q9V/videos/radius-quickstart-end.mp4?fit=max&auto=format&n=XifxWshzhd_l_q9V&q=85&s=3a7f7c6f7431b945dfc944be8383522e" data-path="videos/radius-quickstart-end.mp4" />

Next, learn more about [tabs and splits](/docs/radius-cli/tabs) or
[groups](/docs/radius-cli/groups), or browse the [Cookbook](/docs/cookbook) for complete
workspace recipes.