QUESTION: 'Show/Hide' visibility collection sets? (for different compositions)

- Similar to Photoshop 'Layer Comps': set layer visibilities; assign name to collection... repeat. Allows design variations w/i a single design file.

IMAGE:
- Two variations:
1) All elements.
2) Just bottom elements.
(Note red outline around all; and another around just the bottom.)
- So, various elements must be shown/hidden to create the desired design variation.
- Not too difficult w/ this file, but still requires time, plus is error-prone.
- Possibly a PLUG-IN, or SCRIPT?
- Have done "concerted" Web search, but to no avail 
- Surely this is a feature others would value, too.
- Hm?...
THX...