How to place shared documents in multi-version mode

[kzxuan]

In multi-version mode, I have the following structure
docs
|--v2.0
|---- protocol
|---- _meta.json
|-- v2.1
|---- protocol
|---- _meta.json
How can I extract the protocol folder to a common location so that it does not need to be maintained on both sides?

———
When I try the following structure, non-default versions cannot be successfully rendered.
docs
|-- protocol
|--v2.0
|---- _meta.json
|-- v2.1
|---- _meta.json

[Timeless0911]

There is currently no concept of shared, and it is hard to distinguish the scope of shared. Each folder should manages its own files.