Openextensions on DriveItem ?

Question

Hi, I know the doc say that it's not allow form driveItem but why ?

I would like to add a request for that but the https://microsoftgraph.uservoice.com/ is down ...

My need :

I have a bot that create a tree folder structure when a new client is created in our CRM.
like this :

[CustomerId] - Contract

• Emails
• Supports
  ----- Photos
• Photos
• etc.

Some times folder are renamed by users (it's requiered but the client), so i would like to store inside the folder (driveitem) a metadata with a id that i can search on, even if the folder name have changed

[CustomerId]

• Contract (ref : Contract)
• Communications (ref : Emails)
• All supports (ref : Supports)
  ------ Images (ref : Supports-Photos)
• Photos (ref : Main-Photos)
• etc.

Any suggestion ? Thx