Enabling Overlay and Underlay Art Layers
T-LAY-002-004
By default, the Overlay and Underlay art layers are disabled to simplyify the workflow. You can enable the support of those additional art layers in the Preferences panel.

- Select Edit > Preferences ( Windows/Linux ) or Harmony Advanced > Preferences ( macOS ).
- In the Preferences dialog box, select the Advanced tab.
- In the Advanced Options section, select the Support Overlay and Underlay Arts option.
- Click OK.