![Outlook Outlook](/uploads/1/0/1/0/101052584/621817239.png)
On your Mac, click the Finder icon in the Dock to open a Finder window. Do any of the following: Search for a tag: Enter the tag color or name in the search field, then select the tag from the suggestions. Select a tag in the sidebar: To see everything with a certain tag, click the tag in the Finder sidebar. To change the items you see in the sidebar, choose Finder Preferences, click Tags. Click the Sidebar tab. Check any folder or special item you want in the sidebar, like Documents or All My Files. Drag in the Sidebar to rearrange the order in which items appear.
![Sidebar For Mac Sidebar For Mac](/uploads/1/0/1/0/101052584/390874946.jpg)
A sidebar provides app-level navigation and quick access to top-level collections of content in your app. Selecting an item in the sidebar allows people to navigate to a specific piece of content. For example, the sidebar in Mail shows a list of all mailboxes. People can select a mailbox to access its list of messages, and select a specific message to display in the content pane.
You create a sidebar by using a sidebar-style list and placing it in the primary column of a split view. For related guidance, see Split Views.
Apply the correct appearance to a sidebar. To create a sidebar, use the sidebar appearance of a collection view list layout. For developer guidance, see UICollectionLayoutListConfiguration.Appearance.
Use a sidebar to organize information at the app level. A sidebar is a good way to flatten your information hierarchy and provide access to several peer information categories or modes at the same time. Use a sidebar for quick navigation to the key parts of the app or top-level collections of content like folders and playlists.
Whenever possible, let people customize the contents of a sidebar. Because a sidebar provides the navigation for your app, you can use it to provide shortcuts for people to get quickly to the content they care about. It’s best when the user can decide which items are most important.
Don't prevent people from hiding the sidebar. Allow people to hide the sidebar to create more room for their content, and to show the sidebar again using the built-in edge swipe gesture. Avoid making the sidebar hidden by default.
Keep titles in the sidebar clear and concise. Omit unnecessary and redundant words. For example, Mail omits the word Messages from the title of each mailbox, using more concise terms like Flagged and Drafts.
In general, refrain from exposing more than two levels of hierarchy within a sidebar. When a data hierarchy is deeper than two levels, use a list view in the supplementary column of a split-view interface.
For developer guidance, see UICollectionLayoutListConfiguration.
A sidebar—technically known as a source list—resides on one side of a window and is usually separated from the rest of the window by a horizontal splitter, which is often movable. A sidebar typically consists of a table view or outline view that lets people navigate and select items to act upon in the main portion of the window. For example, the sidebar in a Finder window includes a list of frequently accessed locations and tag-based search shortcuts. The user can select one to access its contents or results in the main portion of the window.
For related guidance, see Split Views, Table Views, and Outline Views.
Consider using a sidebar to let users interact with file-based data without exposing them to the file system. When it comes to the minutiae of file management, a sidebar abstracts files into app-specific elements and containers. For example, iTunes lets people navigate and manage media files like songs, podcasts, and movies using libraries and playlists, and without ever needing to interact with the file system.
Use titles to form logical groupings of related items. Sidebars don’t generally have headers like table views do, but they sometimes include titles. The Finder sidebar uses titles to organize the user’s favorite locations (Favorites), devices (Devices), shared drives (Shared), and tag-based searches (Tags).
In general, refrain from exposing more than two levels of hierarchy within a sidebar. In some cases, a second sidebar may be warranted when a data hierarchy is deeper than two levels. If your app requires the navigation of deeply nested objects, consider implementing a column view. See Column Views.
Opaque sidebar
Apply the correct background appearance to a sidebar. Use an opaque background when a window contains more than one sidebar, and when using a sidebar in a panel or preferences window. All other times, use a translucent background. See Translucency. Table views and outline views automatically adopt translucent backgrounds when configured with a source list selection highlight style. For developer guidance, see NSTableViewSelectionHighlightStyleSourceList.
Outlook For Mac Sidebar
Consider automatically hiding and revealing a sidebar as its parent window is resized. For example, when you reduce the size of a Mail viewer window, at a certain point, its sidebar automatically collapses so there's more room for content.
Whenever possible, let people customize the contents of a sidebar. Since a sidebar provides shortcuts to commonly used items, it’s best when the user can decide which items are most important. You should also consider using Spotlight to offer smart data containers. For developer guidance, see Spotlight Overview.
Finder Window Sidebar
In an editable sidebar, consider providing buttons that add, remove, manipulate, or get information about items. Sidebar buttons should be borderless buttons that float above the bottom of the sidebar or gradient buttons that reside in the parent window immediately below the bottom of the sidebar. For related guidance, see Gradient Buttons.
Consider using a popover instead of a sidebar when you need a way to expose nonessential functionality. A popover appears only when users need it. See Popovers.