Everything Setting Advanced Display Options You can set your views to show different display outputs simultaneously with the Advanced Display option. How to enable the Advanced Display option Do one of the following: ‣ From the top menu, select Edit > Preferences (Windows/Linux) or Harmony Premium > Preferences (macOS). ‣ Press Ctrl + U (Windows/Linux) or ⌘ + U (macOS). In the Preferences dialog box, select the Advanced tab. In the Advanced Options section, select the Advanced Display option. A Display menu appears in the top-left corner of the Camera, Timeline, Perspective, Top, and Side views.