Use the new Layer Manager pane to easily manipulate all layer attributes within a Display object at once, plus create screen definitions using the new Layer Groups feature within the Layer Manager pane!
Also, view the second video below for a look at the new Video Layer feature of the Layer Manager, released in Altia Design 11.1.1!
NOTE: For a more detailed look at the Layer Manager/Display Object's individual attributes and functions, please see this earlier video (or reference section 10.5.4 of the Altia Design User's Guide):
https://altia.zendesk.com/entries/24076386--Video-29-mins-The-Display-Object