Organize variable modes hierarchy

Would it be possible to create a collection of modes with groups and sub-groups or create linked collections feature? In my case, there could be a light and dark mode using accessibility mode and the company’s branding could be distinguished from the client’s branding variables using sub-collections.

Collection
├── Company
│   ├── Accessible mode
│   │   ├── Light
│   │   └── Dark
│   └── Standard
│       ├── Light
│       └── Dark
└── Client
    ├── Accessible mode
    │   ├── Light
    │   └── Dark
    └── Standard
        ├── Light
        └── Dark