You can choose which content to show in a playlist and which to hide to showcase later. To hide/view the content: 1. Click on the playlist where the content you wish to turn off/on the content. 2. Hover your mouse over the content source and see the menu on the right side up. 3. Click on the Eye icon. Now your content is turned off and cannot be seen on the media wall. To turn the content on again, you will need to click on the same icon.