If your company uses the [Looker pre-built homepage](https://docs.cloud.google.com/looker/docs/finding-content.md.txt#viewing_content_on_your_homepage), admins or users who have the [`manage_homepage` permission](https://docs.cloud.google.com/looker/docs/admin-panel-users-roles.md.txt#manage_homepage) can share text, links, and images with all Looker users in the right-hand announcement sidebar:

![](https://docs.cloud.google.com/static/looker/docs/images/admin-curated-sidebar-2412.png)

If the announcement sidebar has been closed, it can be re-opened by selecting **Welcome Guide** from the **Help** menu in the Looker header.

Admins and users who have the [`manage_homepage` permission](https://docs.cloud.google.com/looker/docs/admin-panel-users-roles.md.txt#manage_homepage) can add or edit the sidebar. Before content is [added to the sidebar](https://docs.cloud.google.com/looker/docs/making-announcements-to-your-users.md.txt#adding_a_new_card), non-admin users will see the pre-built homepage without the sidebar. Admins and users who have the [`manage_homepage` permission](https://docs.cloud.google.com/looker/docs/admin-panel-users-roles.md.txt#manage_homepage) will see prompts to add content to the sidebar.

> [!NOTE]
> **Note:** For Looker (Google Cloud core) instances, the [**Discover** sidebar](https://docs.cloud.google.com/looker/docs/finding-content.md.txt#viewing_content_on_your_homepage) appears instead of the announcement sidebar until the user closes the **Discover** sidebar by clicking the **Close** icon. Once the **Discover** sidebar is closed, the announcement sidebar appears.


## Adding a card

1. At the top of the sidebar, click **+ Add New Card**.
2. Under **Title**, enter a title for the card. The title appears as header text that is always visible on the card. Titles that are more than 25 characters long may not display properly --- the end may be cut off.
3. Optionally, enter the following:
   - **Description** : Text that appears after the title on the card. The **Description** field has a 250-character limit.
   - **Link** : URL that opens in a new browser tab when a user clicks on the card. Enter the full URL, including the `https://` or `http://`. The URL path does not appear to the user, but the card title and text will appear blue if the card is a link or will appear black if the card is not a link. You can also use the **Description** field to add a text description of the link target, such as its title.
   - **Upload Image** : Click the **Upload Image** button to upload an image that appears in the card.
4. When your new card is finished, click **Create**.


## Editing a card

1. Click the three-dot **Content Card Menu** icon on the card you would like to edit, and select **Edit**.
2. Optionally, edit the following:
   - **Title**: Bold text that is always visible on the card
   - **Description**: Text that appears after the title on the card
   - **Link**: URL that opens in a new browser tab when a user clicks on the card
3. Optionally, click the trash bin icon to delete the card's image. If you want to upload a new image, click **Upload Image** to navigate to and upload a new image for the card.
4. Select **Save** to save the card.


## Changing a sidebar title or description

1. Hover over the sidebar title or description to reveal the **Edit** pencil icon. Click the **Edit** pencil icon.
2. Select the existing title or description and replace it with a new sidebar title or description.
3. To save changes, click the **Done** checkmark icon.


## Rearranging cards

Click and drag the six-dot **Drag handle** icon in the bottom left of a card to move the card's order in the sidebar.


## Deleting a card

1. Click the three-dot **Content Card Menu** icon on the card that you would like to edit, and select **Delete**.
2. To confirm the deletion, click **Confirm**.


## Linking to Markdown documents

You can write documentation, announcements, or information for [Looker projects](https://docs.cloud.google.com/looker/docs/how-project-works) using [GitHub-flavored Markdown](https://guides.github.com/features/mastering-markdown/) and link to the [documentation files](https://docs.cloud.google.com/looker/docs/other-project-files#document_files) in the sidebar.


Users with develop privileges can navigate to and obtain the URL for a Markdown document by following these steps:

1. [Navigate to the project](https://docs.cloud.google.com/looker/docs/accessing-project-files.md.txt).
2. Select the name of the document (or [create a new document](https://docs.cloud.google.com/looker/docs/other-project-files#creating_documentation_files)).
3. From the document menu, select **View Document**.
4. From the new browser window, copy the URL for the document.
5. Paste the Markdown file URL into the **Link** field of a sidebar card.

Now, users can click that sidebar card and Looker will open the document in a new browser tab.