The data source that powers Gallery is the Engagement Dashboards. That means that all content that you want to be shown in your Gallery must be curated into an Engagement Dashboard Column. 

Content Curation for Brand Content

Create an Engagement Dashboard

1. Click the New Tab icon  and select Engagement Dashboards under the Social.

2. Hover over the Options icon  in the top right of the Engagement Dashboards and select Add Dashboard. 

3. Enter a Name and add Tags per your needs. Tags help organize your Engagement Dashboards into folders in the Dashboard Menu. Enter an existing tag to categorize your new dashboard in an existing folder, or enter a new tag to create a new folder.  

4. Click Add to save your Dashboard.
   

Create a Column 

1. To being, click Add Column in either the top right corner of the Dashboard or in middle of the Dashboard.

2. Select the Outbound Messages source from the available column category icons for your column.

3. Next, select the Sent column type. 

4. Enter a column Name such as Brand Content. Enter any additional properties to further personalize the column. Click Create Column to save your column.