A Directus extension that provides a tree view (Interface) for one-to-many relationships like the one used by Notion.
In the root of your Directus project ...
npm i @webartisanbros/directus-extension-o2m-tree-view
... and restart Directus!
This extension is based on the Tree View Interface provided by Directus, so use it as you would use the default Tree View interface.
Create a parent
field as a Many to One relation.
Create a childs
field as a One to Many - Tree View relation.