# Toolbar (/docs/guide/toolbar)



Most of Thoughtree's operations happen through the toolbar that floats over the screen. Its layout differs between macOS and iOS.

## macOS Toolbar [#macos-toolbar]

From left to right:

| Button            | What it does                                                                                                                                             |
| ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Sidebar           | Show or hide the sidebar (topic list) on the left                                                                                                        |
| New Child Topic   | Add a child topic to the selected topic                                                                                                                  |
| New Sibling Topic | Add a sibling topic to the selected topic                                                                                                                |
| Delete            | Delete the selected topic (branch)                                                                                                                       |
| Shape             | Open a menu to choose the topic's shape                                                                                                                  |
| New Callout       | Add a callout to the selected topic                                                                                                                      |
| Relationship      | Create a connection between two topics                                                                                                                   |
| Boundary / Group  | Add or remove a boundary for a single selection, or group topics for a multiple selection (switches automatically based on how many topics are selected) |
| Summary           | Add a summary spanning the selected sibling topics                                                                                                       |
| Inspector         | Show or hide the Inspector on the right                                                                                                                  |

## iOS Toolbar [#ios-toolbar]

Five items are always shown at the bottom of the screen; everything else lives in the overflow menu (the "More" button).

**Always shown**: New Child Topic / New Sibling Topic / Delete / Shape / Image

**In "More"**: New Callout / Relationship / Boundary / Summary

## The Capsule Shown When a Topic Is Selected [#the-capsule-shown-when-a-topic-is-selected]

When you select a topic, a small formatting capsule floats over the canvas.

* **Font** — Change the font of the selected topic
* **Image** — Add an image to the selected topic
* **Memo** — Edit the memo for the selected topic
* **Expand** (❯) — Open the Inspector for more detailed settings