To Work with Backgrounds in the Object Inspector

You can edit the Backgrounds properties in the Auxiliary objects section of the Object Inspector.

You can edit parameters of backgrounds in the properties table in the lower part of Object Inspector.

Use the options in the View dialog to toggle independently the visibility of all backgrounds in projections and 3D views.

To toggle the visibility of a background, select the General > On: Yes or No option in the background properties in the Inspector pane.

Useful information concerning work with a background: