# Documentation tool window

> **TL;DR**
> `View | Tool Windows | Documentation`
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>
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> `Ctrl+Q` (Windows), `F1` (macOS), `⌃ J` (IntelliJ IDEA Classic (macOS)), `⌘ I` (macOS System Shortcuts), `Ctrl+Q` (XWin), `Ctrl+Q` (GNOME), `Ctrl+Q` (KDE), `Ctrl+Q` (Emacs), `Ctrl+Q` (Sublime Text), `Ctrl+Q` (Sublime Text (macOS)), `⌘ ⌃ ⇧ /` (Xcode), `Ctrl+K, I` (Visual Studio), `⌘ K, I` (Visual Studio (macOS)), `Ctrl+Q` (ReSharper), `⌃ Q` (ReSharper (macOS)), `Ctrl+Q` (QtCreator), `Ctrl+Q` (QtCreator (macOS)), `Ctrl+Q` (NetBeans), `Alt+Middle-Click` (Eclipse), `⌥ Middle-Click` (Eclipse (macOS))

By default, CLion shows [Quick Documentation](null) in a popup; to view it in the tool window, click ![](https://resources.jetbrains.com.cn/help/img/idea/2026.2/app.actions.more.svg) in the popup and choose Open in Documentation Tool Window or press `Ctrl+Q` (Windows), `F1` (macOS), `⌃ J` (IntelliJ IDEA Classic (macOS)), `⌘ I` (macOS System Shortcuts), `Ctrl+Q` (XWin), `Ctrl+Q` (GNOME), `Ctrl+Q` (KDE), `Ctrl+Q` (Emacs), `Ctrl+Q` (Sublime Text), `Ctrl+Q` (Sublime Text (macOS)), `⌘ ⌃ ⇧ /` (Xcode), `Ctrl+K, I` (Visual Studio), `⌘ K, I` (Visual Studio (macOS)), `Ctrl+Q` (ReSharper), `⌃ Q` (ReSharper (macOS)), `Ctrl+Q` (QtCreator), `Ctrl+Q` (QtCreator (macOS)), `Ctrl+Q` (NetBeans), `Alt+Middle-Click` (Eclipse), `⌥ Middle-Click` (Eclipse (macOS)) twice.

![CLion: Documentation tool window](https://resources.jetbrains.com.cn/help/img/idea/2026.2/cl_documentation_toolwindow.png)

> **Note:**
> The `View | Tool Windows | Documentation` menu option appears only if you have configured the IDE to display [code documentation](viewing-inline-documentation.html)   in a tool window and some documentation is open in the window.

| Icon | Shortcut | Description |
| --- | --- | --- |
| ![the Back button](https://resources.jetbrains.com.cn/help/img/idea/2026.2/app-client.expui.general.left.svg) ![the Forward button](https://resources.jetbrains.com.cn/help/img/idea/2026.2/app-client.expui.general.right.svg) | `Left` (Windows), `←` (macOS), `←` (IntelliJ IDEA Classic (macOS)), `←` (macOS System Shortcuts), `Left` (XWin), `Left` (GNOME), `Left` (KDE), `Left` (Emacs), `Left` (Sublime Text), `←` (Sublime Text (macOS)), `←` (Xcode), `Left` (Visual Studio), `←` (Visual Studio (macOS)), `Left` (ReSharper), `←` (ReSharper (macOS)), `Left` (QtCreator), `←` (QtCreator (macOS)), `Left` (NetBeans), `Left` (Eclipse), `←` (Eclipse (macOS)) or `Right` (Windows), `→` (macOS), `→` (IntelliJ IDEA Classic (macOS)), `→` (macOS System Shortcuts), `Right` (XWin), `Right` (GNOME), `Right` (KDE), `Right` (Emacs), `Right` (Sublime Text), `→` (Sublime Text (macOS)), `→` (Xcode), `Right` (Visual Studio), `→` (Visual Studio (macOS)), `Right` (ReSharper), `→` (ReSharper (macOS)), `Right` (QtCreator), `→` (QtCreator (macOS)), `Right` (NetBeans), `Right` (Eclipse), `→` (Eclipse (macOS)) | Switch to the previous or go to the next documentation page (for example, after clicking hyperlinks).     On macOS, you can also use the three-finger right-to-left and left-to-right swipe gestures.    |
|  ![the Edit Source button](https://resources.jetbrains.com.cn/help/img/idea/2026.2/app.expui.general.edit.svg)  | `F4` (Windows), `⌘ ↓` (macOS), `F4` (IntelliJ IDEA Classic (macOS)), `F4` (macOS System Shortcuts), `F4` (XWin), `F4` (GNOME), `F4` (KDE), `F4` (Emacs), `F4` (Sublime Text), `F4` (Sublime Text (macOS)), `⌘ ↓` (Xcode), `F4` (Visual Studio), `⌘ ↓` (Visual Studio (macOS)), `F4` (ReSharper), `⌘ ↓` (ReSharper (macOS)), `F4` (QtCreator), `F4` (QtCreator (macOS)), `F4` (NetBeans), `F12` (Eclipse), `F3` (Eclipse (macOS)) | Navigate to the source code of the symbol whose documentation is currently open. |
| ![Settings](https://resources.jetbrains.com.cn/help/img/idea/2026.2/app.expui.general.moreVertical.svg) |  |      * Show Documentation Popup First: show documentation in a popup when you press `Ctrl+Q` (Windows), `F1` (macOS), `⌃ J` (IntelliJ IDEA Classic (macOS)), `⌘ I` (macOS System Shortcuts), `Ctrl+Q` (XWin), `Ctrl+Q` (GNOME), `Ctrl+Q` (KDE), `Ctrl+Q` (Emacs), `Ctrl+Q` (Sublime Text), `Ctrl+Q` (Sublime Text (macOS)), `⌘ ⌃ ⇧ /` (Xcode), `Ctrl+K, I` (Visual Studio), `⌘ K, I` (Visual Studio (macOS)), `Ctrl+Q` (ReSharper), `⌃ Q` (ReSharper (macOS)), `Ctrl+Q` (QtCreator), `Ctrl+Q` (QtCreator (macOS)), `Ctrl+Q` (NetBeans), `Alt+Middle-Click` (Eclipse), `⌥ Middle-Click` (Eclipse (macOS)). Press `Ctrl+Q` (Windows), `F1` (macOS), `⌃ J` (IntelliJ IDEA Classic (macOS)), `⌘ I` (macOS System Shortcuts), `Ctrl+Q` (XWin), `Ctrl+Q` (GNOME), `Ctrl+Q` (KDE), `Ctrl+Q` (Emacs), `Ctrl+Q` (Sublime Text), `Ctrl+Q` (Sublime Text (macOS)), `⌘ ⌃ ⇧ /` (Xcode), `Ctrl+K, I` (Visual Studio), `⌘ K, I` (Visual Studio (macOS)), `Ctrl+Q` (ReSharper), `⌃ Q` (ReSharper (macOS)), `Ctrl+Q` (QtCreator), `Ctrl+Q` (QtCreator (macOS)), `Ctrl+Q` (NetBeans), `Alt+Middle-Click` (Eclipse), `⌥ Middle-Click` (Eclipse (macOS)) the second time to open the documentation in the tool window. Disable the option to always show quick documentation in the tool window.    * Show on Mouse Move: show quick documentation when you hover over code elements in the editor. When the option is disabled, you need to press `Ctrl+Q` (Windows), `F1` (macOS), `⌃ J` (IntelliJ IDEA Classic (macOS)), `⌘ I` (macOS System Shortcuts), `Ctrl+Q` (XWin), `Ctrl+Q` (GNOME), `Ctrl+Q` (KDE), `Ctrl+Q` (Emacs), `Ctrl+Q` (Sublime Text), `Ctrl+Q` (Sublime Text (macOS)), `⌘ ⌃ ⇧ /` (Xcode), `Ctrl+K, I` (Visual Studio), `⌘ K, I` (Visual Studio (macOS)), `Ctrl+Q` (ReSharper), `⌃ Q` (ReSharper (macOS)), `Ctrl+Q` (QtCreator), `Ctrl+Q` (QtCreator (macOS)), `Ctrl+Q` (NetBeans), `Alt+Middle-Click` (Eclipse), `⌥ Middle-Click` (Eclipse (macOS)) to view code documentation.    * Open as Popup `Ctrl+Q` (Windows), `F1` (macOS), `⌃ J` (IntelliJ IDEA Classic (macOS)), `⌘ I` (macOS System Shortcuts), `Ctrl+Q` (XWin), `Ctrl+Q` (GNOME), `Ctrl+Q` (KDE), `Ctrl+Q` (Emacs), `Ctrl+Q` (Sublime Text), `Ctrl+Q` (Sublime Text (macOS)), `⌘ ⌃ ⇧ /` (Xcode), `Ctrl+K, I` (Visual Studio), `⌘ K, I` (Visual Studio (macOS)), `Ctrl+Q` (ReSharper), `⌃ Q` (ReSharper (macOS)), `Ctrl+Q` (QtCreator), `Ctrl+Q` (QtCreator (macOS)), `Ctrl+Q` (NetBeans), `Alt+Middle-Click` (Eclipse), `⌥ Middle-Click` (Eclipse (macOS)): show code documentation in a popup instead of the tool window.    * Auto-update from Source: when this option is enabled, the content of the tool window changes as you move the mouse pointer in the editor. If the [Show on Mouse Move](null) option is disabled, place the caret at the symbol and press `Ctrl+Q` (Windows), `F1` (macOS), `⌃ J` (IntelliJ IDEA Classic (macOS)), `⌘ I` (macOS System Shortcuts), `Ctrl+Q` (XWin), `Ctrl+Q` (GNOME), `Ctrl+Q` (KDE), `Ctrl+Q` (Emacs), `Ctrl+Q` (Sublime Text), `Ctrl+Q` (Sublime Text (macOS)), `⌘ ⌃ ⇧ /` (Xcode), `Ctrl+K, I` (Visual Studio), `⌘ K, I` (Visual Studio (macOS)), `Ctrl+Q` (ReSharper), `⌃ Q` (ReSharper (macOS)), `Ctrl+Q` (QtCreator), `Ctrl+Q` (QtCreator (macOS)), `Ctrl+Q` (NetBeans), `Alt+Middle-Click` (Eclipse), `⌥ Middle-Click` (Eclipse (macOS)) to see its documentation in the tool window.    * Close All: close the tool window and all currently open tabs.    * Adjust Font Size…: display a slider for changing the font size.    * View Mode: by default, the tool window is attached to the edge of the main window and is always visible. You can change the [view mode](viewing-modes.html), for example, to make it visible only when active or to detach it from the tool window bar.    * Move to: select where to attach the tool window.    * Resize: adjust the size of the tool window.    * Remove from Sidebar: close the tool window. To reopen it, select `View \| Tool Windows \| Documentation` from the main menu.    |

## See also

### Procedures

[Viewing modes](viewing-modes.html) [Quick documentation](viewing-inline-documentation.html)