Top Level Showcase Identifier
The current methods for sharing a 3D Showcase is to use a URL with a unique identifier for that Showcase. Problems arise when, after a Showcase link has been shared, there are changes to the Showcase scans and a new Showcase for the set of scans is created. This means that every reference to the old Showcase needs to be updated to reflect the identifier for the new Showcase.
It would be more desirable to have the URL use a unique scan/location/object identifier and select which Showcase is currently active. This way, once a Showcase is shared, changes to it that require reprocessing can be automatically reflected using an existing URL.