Method: Working with a set of Canvasses I always use the 'off Artboard' area next to the Artboard as a 'holding area' for assets/content.

Problem:
When I move an Artboard all the content/assets that are related to that Artboard (on canvas) need to be moved separately.

Feature: Regions
I can create a container called a REGION, similar to an Artboard, to move all objects within the container.

Example:
I have a Region that contains 2 Artboards and 6 assets on the Canvas next to the Artboards.
All 8 items move when I drag and drop the Region.